Answer:
Excel has a large number of additional formatting options, and while there are useful shortcuts on the “Home” tab on the toolbar, the most comprehensive list of options can be found by right-clicking on your selected cell or cells and selecting “Format Cells…” from the drop-down menu.
Explanation:
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Say you are a stock investor. You are considering to invest in PFIZER. To that end, you download the stocks' historical price data given in "Computer_Exercise 2.xlsx". More precisely, you analyze the daily market-closing stock prices (or bid-ask averages in case of no trade on that day) from July 3,2000 to December 31, 2020. Please answer the following questions. 1. To start, you want to get an idea of the daily return that you could have obtained by buying on one trading day and selling on the next (assuming that there are no dividends). Compute the daily net return. Express the net return in terms of the percentage change in prices. 2. Now you want to know on how many of the total trading days in your sample you would have made a net return greater than or equal to 0.55%. What is the number of days on which your net return would have been above or equal 0.55% ? 3. You decided that you want to invest in PFIZER. Say that the outcome of your "experiment" (i.e. your investment) that you are interested in is whether you will win a net return larger than or equal to 0.55% on the first day or not. That is, you define a Bernoulli random variable, x, that can take on values 1 (net return >=0.55% on first day), and 0 (net return <0.55% on first day). Since you don't know how to otherwise approach the question (you are a first-time investor), you decide that the likelihood of successes in the past should be an indication of the future probability of success. Hence, what is the probability of success (i.e. net return >=0.55% ) based on the 2000-2020 sample? 4. What is the expected value/population mean of your Bernoulli variable X ? 5. What are the (population) variance and standard deviation of X ? Having computed the latter, comment on how good your "guess" for X (i.e. the expected value in 4.) really is. 6. Is the distribution of X symmetric about its mean? Why or why not? 7. Instead, now assume that your investment horizon is 14 trading days, where on each day you either can gain a net return larger than or equal to 0.55%(X 1
=1) or a net return <0.55%(X=0). Assume that the random variables X 6
i=1,2,…,14, are independent. The probability of success is still the same as in question 3 . above, and it is the same for all i. What is the probability that you will make a net return >=0.55% on 9 (out of the in total 14) following trading days? 8. Under the same assumptions as in question 7. above, what is the probability that you will make a net return above or equal 0.55% on more than 10 (out of the in total 14 ) following trading days?
1. The daily net return for investing in Pfizer is computed by calculating the percentage change in prices from one trading day to the next, assuming no dividends. This provides an idea of the daily return that could have been obtained by buying and selling the stock consecutively.
2. The number of trading days in the sample period where the net return would have been greater than or equal to 0.55% is determined to assess the frequency of favorable returns.
3. Based on the historical data, the probability of success, defined as obtaining a net return larger than or equal to 0.55% on the first day of investment, is determined by considering the likelihood of past successes as an indication of future success.
4. The expected value or population mean of the Bernoulli random variable X, representing the net return being larger than or equal to 0.55% on the first day, is calculated to determine the average outcome of the investment.
5. The population variance and standard deviation of X are computed to measure the variability and dispersion of the outcomes. This analysis provides insight into the reliability of the expected value.
6. The symmetry of the distribution of X about its mean is evaluated to understand whether the net return on the first day is equally likely to be above or below 0.55%. This impacts the overall risk assessment of the investment.
7. Assuming a 14-day investment horizon with independent random variables, the probability of achieving a net return greater than or equal to 0.55% on nine out of the 14 following trading days is calculated to assess the likelihood of sustained favorable returns.
8. Similarly, the probability of obtaining a net return above or equal to 0.55% on more than 10 out of the 14 following trading days is determined to gauge the probability of consistently positive returns within the specified investment period.
1. To calculate the daily net return, we need to compute the percentage change in prices using the historical stock prices data. This provides insights into the potential returns obtained by buying on one day and selling on the next, assuming no dividends.
2. By analyzing the net return values, we can determine the number of trading days where the net return exceeds or equals 0.55%. This helps understand the frequency of favorable returns during the sample period.
3. The probability of success is derived from the historical data, considering the past successes as an indication of the likelihood of future success. By calculating the proportion of days with a net return larger than or equal to 0.55% on the first day, we can estimate the probability.
4. The expected value or population mean of the Bernoulli variable X is calculated by summing the products of the possible outcomes (1 or 0) and their respective probabilities. This provides the average net return expected from the investment.
5. The population variance and standard deviation of X are computed to assess the spread or variability of the net return outcomes. By measuring the dispersion around the expected value, we can evaluate the consistency of the investment performance.
6. The symmetry of the distribution of X is assessed by examining whether the probabilities of net return being above or below 0.55% on the first day are equal. This provides insights into the potential biases or tendencies of the investment outcomes.
7. By assuming independent random variables X for each trading day, we can calculate the probability of obtaining a net return greater than or equal to 0.55% on nine out of the 14 following trading days. This evaluates the likelihood of sustained favorable returns within the specified investment period.
8. Similarly, we determine the probability of achieving a net return above or equal to 0.55% on more than 10 out of the 14 following trading days. This helps gauge the probability of consistently positive returns over the specified investment horizon.
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Give three general features of application software
Answer:
Three general features of application software are:
1. User Interface: Application software has a user interface that allows users to interact with the program. This interface can include menus, icons, buttons, and other graphical elements that make it easy for users to navigate the software and access its features.
2. Functionality: Application software is designed to perform specific tasks or functions. Examples of application software include word processors, spreadsheet programs, graphic design software, and web browsers. Each of these programs has a specific set of features and functions that are tailored to the needs of its users.
3. Customization: Application software can often be customized to meet the specific needs of individual users or organizations. For example, a spreadsheet program can be customized to include specific formulas and calculations that are unique to a particular business or industry. Customization allows users to tailor the software to their specific needs, making it more efficient and effective for their particular use case.
José notices cell A5 of his worksheet contains the railroad tracks (#####) formula error. What should he do?
Delete the formula and just enter the value he wants in the cell
Resize the cell to fit the contents
Clear the formatting on the cell
Filter the cell
Answer: I think it’s clear the formatting on the cell
Explanation:
I don’t know if it’s correct
Based on the information given, José should: B. Resize the cell to fit the contents.
What is a worksheet?A worksheet can be defined as a document which comprises cells (rows and columns) that are arranged in a tabulated format and used for the following on computer systems:
Formatting dataArranging dataAnalyzing and storing data.Calculating and sorting data.On a spreadsheet application such as Microsoft Excel, you should resize the cell to fit the data (contents) when you notice that your worksheet contains railroad tracks (#####) formula error.
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Provide at least two examples of Amazon responsibilities under the AWS Shared Responsibility model.
Under the AWS Shared Responsibility model, Amazon and its customers have specific responsibilities when it comes to security and compliance in the cloud. Amazon is responsible for ensuring the security and availability of its cloud infrastructure, while customers are responsible for securing their own data and applications in the cloud. Here are two examples of Amazon's responsibilities under this model:
1. Infrastructure Security: Amazon is responsible for the security of the physical infrastructure that makes up the AWS cloud, including the data centers, servers, networking, and storage. This includes implementing security controls such as firewalls, access controls, and intrusion detection systems to protect against cyber attacks and other threats. Amazon also conducts regular security audits and assessments to identify vulnerabilities and ensure compliance with industry standards and regulations.
2. Service Availability: Amazon is responsible for ensuring that its cloud services are available and accessible to customers at all times. This includes providing redundant systems and backup power supplies to prevent downtime in the event of a hardware failure or natural disaster. Amazon also monitors its cloud infrastructure 24/7 to identify and resolve any issues that may impact service availability.
In summary, Amazon's responsibilities under the AWS Shared Responsibility model include maintaining the security and availability of its cloud infrastructure, while customers are responsible for securing their own data and applications. By working together, Amazon and its customers can ensure a secure and reliable cloud computing environment.
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palermo theater group is headquartered inphoenix, arizona. founded in 2005, they had a mission to open 12 cinema locations in 15 have achieved their goal, but it has become necessary for palermo to update how they handle their business process and track their data.palermo does not just offer movies. each location has a full bar and kitchen. guests can eat and drink either at the bar or in a theater while watching a film.palermo uses the aloha system to run most of the scheduling and accounting as those are location specific, but they need a separate database to track customer checks and information for their loyalty program so they can centralize the process of all the locations. guests at the palermo theaters purchase tickets for their movies before they arrive, and seats in the theater are assigned. each theater location has at least eight screens. bar guests do not need tickets or of palermo's locations has a theme based on a movie, and the decor of each location follows a different number one movie theme. the themes vary as follows:
Palermo Theater Group is a cinema chain headquartered in Phoenix, Arizona, founded in 2005, which aimed to open 12 movie locations in 15 years. Palermo provides not only movies, but also a full bar and kitchen at each site.
The guests can eat and drink in the bar or in a theater while enjoying a movie.Palermo relies on the Aloha system to handle most of the scheduling and accounting, which is location-specific. However, they need a separate database to manage client checks and information for their loyalty program to centralize the operation of all locations. The guests purchase tickets for their films ahead of time, and the seats in the cinema are designated. Each theater location has at least eight screens. Bar guests do not need tickets or reservations.The decor of each Palermo location follows a theme based on a popular movie. Each site has a different number one movie theme, and the themes differ from one another. Palermo needs to upgrade how they handle their business processes and track their data to suit their growing operations. The company has already achieved its initial aim of opening 12 movie locations in 15 years. The organization may streamline its operations and centralize customer check and loyalty program details by implementing a centralized database system. The centralization process will benefit all of the locations and make the data more accessible to everyone.
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what is copyrights used for
if something belongs to someone it makes it so someone else cannot steal it and claim it to be their own
N an AWS design template, the "depends on" property of a resource is represented by an _________ color dot. Red Orchid Blue Black
Answer:
Black
Explanation:
Explicit dependencies in Amazon Web Services are used to determine the order in which resources are added or deleted on AWS Cloud Formation. If a user wishes to create explicit dependency, a line from the "dependson" dot located at the route is moved to the gateway-VPC attachment.
The "dependson" dot helps to specify which resource is created before another. It is signified by a black dot (*). It can be used to override parallelisms and also to determine when a wait condition becomes activated.
teddy roosevelt believed that large corporate trusts
Teddy Roosevelt believed that d) were bad only if they acted as monopolies against the public interest.
He proposed the Sherman Antitrust Act, which made it illegal for corporations to form trusts and monopolize markets. He also supported legislation to regulate the railroads and other industries.
In an effort to ensure fair competition and prevent large corporations from gaining too much control. His efforts were successful in reducing the power of large corporations and ensuring that the free market was preserved.
Complete question:
Teddy Roosevelt believed that large corporate trusts
a) had to all be busted up if the American economy were to thrive.
b) were essential to American national power and economic growth.
c) were simply too powerful to be broken up or regulated.
d) were bad only if they acted as monopolies against the public interest.
e) should be balanced by strong labor unions.
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Which of the following is a necessary step in maintaining computer hardware?A. Connecting peripheral devices to computerB. Rebooting the computer oftenC.Using a UPS or a surge processorD. Cleaning air vents
A necessary step in maintaining computer hardware is Cleaning air vents. The correct option is D. Cleaning air vents.
Regularly cleaning air vents is crucial for maintaining computer hardware as it prevents the buildup of dust and debris. This ensures proper airflow and prevents overheating, which can damage components and reduce the lifespan of your computer. While connecting peripheral devices, rebooting the computer, and using a UPS or surge protector are helpful for functionality and protecting against power surges, cleaning air vents specifically addresses the maintenance of the computer hardware itself.
To maintain computer hardware, it is essential to clean air vents regularly to prevent overheating and prolong the lifespan of your computer. The correct option is D. Cleaning air vents.
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How much would it cost to get the screen replaced on a Moto G7?
Shreya has combined all the cells in a single leftmost column in a table. Instead of identifying the category multiple times, she would like to combine these cells and then structure the word "Appliances” vertically in the cell.
Where will Shreya find these options?
Insert tab, Tables group
Design tab, Merge group
Table Tools Design tab, Merge group
Table Tools Design tab, Merge group, Alignment group
Answer:
the answer for this is ,table tools,design tab,merge group
Which of these standards has the fastest connection?
802.11a
802.11g
802.11ac
802.11b
Answer:
802.11ac is fastest cinnection
In HTML, an opening tag and its closing tag must appear on the same line. True Or False
Answer:
the answer is true, you cannot break the element apart EVERR!!!!!
Discuss and include an explanation of which factors could explain the differences and similarities in systematic risk of the following shares.
Microsoft systematic risk: 0.9
Apple systematic risk: 1.2
Amazon systematic risk: 1.4
The differences and similarities in systematic risk among shares such as Microsoft, Apple, and Amazon can be explained by several factors, including the nature of the industry they operate in, company-specific characteristics, and market conditions.
Systematic risk, also known as market risk, refers to the risk associated with the overall market and cannot be eliminated through diversification. The differences and similarities in systematic risk among shares can be attributed to the following factors:
1) Industry Factors: Different industries have varying levels of systematic risk. For example, technology companies like Microsoft, Apple, and Amazon operate in the same sector but may have different risk profiles due to variations in market demand, competition, and regulatory factors. These industry-specific factors can influence the systematic risk of individual shares.
2) Company-Specific Factors: Each company has its own unique characteristics that can contribute to differences in systematic risk. Factors such as financial stability, management efficiency, product diversification, and market position can impact the overall risk profile of a company's shares. Differences in these factors may explain variations in systematic risk among Microsoft, Apple, and Amazon.
3) Market Conditions: Systematic risk is influenced by broader market conditions, such as economic cycles, interest rates, geopolitical events, and investor sentiment. Changes in these external factors can affect the systematic risk of all shares to some degree. If the market experiences high volatility or uncertainty, it may result in higher systematic risk for all shares, including Microsoft, Apple, and Amazon.
It is important to note that systematic risk is calculated based on historical data and can change over time. Therefore, the observed systematic risk values for Microsoft (0.9), Apple (1.2), and Amazon (1.4) represent their respective risk levels at a specific point in time and may fluctuate in response to changing market dynamics.
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the user reports intermittent Wireless connectivity on a new mobile phone other users do not report any issues using mobile devices connected to 3 access points in the office the protocol in use is WPA2 /AES what is most likely the cause
The most likely the cause is that the mobile or client system is moved too far away from the access point.
What is wireless connectivity?A wireless network is known to be a form of computer network where one uses only Radio Frequency (RF) connections instead of the use of wires or antennae.
Note that the most likely the cause is that the mobile or client system is moved too far away from the access point and as such when the user is close to the Wireless connectivity, it will work very fine.
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How to fix an automated WordPress update has failed to complete?
answer luca knows a little bit about computers and is asked to help set up a small office with seven computers and an older high-quality printer that does not have an ethernet port. luca connects the printer to a computer and configures sharing. however, none of the computers seem able to connect or send jobs to the printer. what should luca do?
Since Luca connects the printer to a computer and configures sharing and, none of the computers seem able to connect or send jobs to the printer. The thing that Luca can do is to Install the driver for the said printer on all of the computers.
Does printing require a driver?Without using a printer driver, the direct print function sends a file from the host terminal to the printer, enabling the printer to recognize the file and print.
Consequently, you can print without opening a file. A printer driver is a piece of software that converts your computer's data into a format that can be understood by your printer.
Therefore, your computer must learn how to communicate with each specific printer because they are each built with unique hardware and software. For this purpose, a printer driver is used.
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what is the main idea of the text A room sized computer in your digital music player.
Answer:
SIGSALY was the first digital voice encoding system
Explanation:
Which Web-driven service technology allows users to share information and post responses to one another in online discussion groups?a. online forumsb. cloud appsc. cha
The use of technology has transformed the way we interact with one another, especially when it comes to sharing information.
Among the many web-driven service technologies available, online forums stand out as one of the most popular tools for users to share information and post responses to one another in online discussion groups. These forums provide a platform where users can engage in discussions on various topics, share ideas, ask and answer questions, and build communities of like-minded individuals.
In conclusion, online forums have become an integral part of the web-driven service technology landscape, providing a platform for users to share information, collaborate, and build communities. With the growing popularity of these forums, it is important for users to exercise caution and moderation in their use, to ensure that they are used for productive and meaningful conversations.
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what type of activities are performed with the help of the software used in hospitals?
Answer:
Xrays, Ultrasounds, managing patient records, communicating with colleagues, etc.
A small startup company has hired you to harden their new network. Because funds are limited, you have decided to implement a unified threat management (UTM) device that provides multiple security features in a single network appliance: Firewall VPN Anti-spam Antivirus You join the UTM device to the company's Active Directory domain. The company's traveling sales force will use the VPN functionality provided by the UTM device to connect to the internal company network from hotel and airport public Wi-Fi networks. Which weaknesses exist in this implementation
Answer: The UTM represents a single point of failure
Explanation:
Unified threat management is a method used in information security which has to do with the installation of a single hardware or software that provides several security functions.
Even though it's easy to manage from a single device, the disadvantage is that within the information technology infrastructure, there is a single point of failure.
An example of a technological innovation that increased the country’s natural resource base is.
The oil drill is an illustration of a technological advancement that enhanced the nation's natural resource base.
What does the term "technology innovation" mean?A new or enhanced product or procedure with considerably better technological features is referred to as a technological innovation. New products (product innovations) or processes (process innovations) that have been commercialized constitute technologically implemented product innovations.An expanded definition of innovation is technological innovation. Although innovation is a fairly well-defined notion, many people—especially those in the academic and corporate worlds—understand it to mean different things. Technological breakthroughs including wind turbines, photovoltaic cells, concentrated solar power, geothermal energy, ocean wave power, and many other recent innovations are included in the innovations. Innovation in technology benefits society. By bringing new, better products and services to the populace, it raises productivity and raises the level of living for everyone. Innovation's advantages sometimes take time to manifest. They frequently affect the entire population in a wide sense.To learn more about technological innovation, refer to:
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Selma writes the following four answers in her Computer Science examination.
State which computer terms she is describing.
“It is a signal. When the signal is received it tells the operating system that an event has occurred.”
Selma is describing
Answer:
Interrupts.
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.
The four (4) input-output (I/O) software layers includes the following;
I. User level software: it provides user programs with a simple user interface to perform input and output functions.
II. Device drivers: it controls the input-output (I/O) devices that are connected to a computer system through a wired or wireless connection.
III. Device-independent OS software: it allows for uniform interfacing and buffering for device drivers.
IV. Interrupt drivers (handlers): it is responsible for handling interruptions that occur while using a software on a computer system.
An interrupt is a signal from a program or device connected to a computer and it's typically designed to instruct the operating system (OS) that an event has occurred and requires an attention such as stopping its current activities or processes.
In conclusion, the computer term that Selma is describing is interrupts.
Answer:
Interrupts
Explanation:
Dr Martin Luther King and his followers go to Selma, Alabama to attempt to achieve, through non-violent protest, equal voting rights and abilities for black people. In 1964, Dr. Martin Luther King Jr. of the Southern Christian Leadership Conference (SCLC) accepts his Nobel Peace Prize.
Which careers require completion of secondary education, but little to no postsecondary education? Mathematical Technicians and Mechanical Engineers Sociologists and Electronics Engineering Technicians Food Science Technicians and Zoologists Nondestructive Testing Specialists and Surveying Technicians
Answer:
Nondestructive Testing Specialists and Surveying Technicians
Explanation:
A nondestructive testing specialist and surveying technician refers to an individual who is saddled with the responsibility of providing services such as the inspection of structures (aeroplane, dam, trains, reactors, bridges), machines or equipments, and raw materials in order to check for problems or any defective part.
Hence, Nondestructive Testing Specialists and Surveying Technicians is a career that requires the completion of secondary education, but little to no postsecondary education because they use equipments mainly to find detects and gather details about any problem.
Answer:
D is correct on test review
Which of the following least illustrates inequity caused by the digital divide?
Which of the following is not a good practice for effective Internet searches? Search for specific keywords that define your topic Use quotation marks to search for exact phrases Be general in your search query to get as many results possible Use or - to include or exclude different topics
Answer:
Be general in your search query to get as many results possible
The javelin toss is an example of a real-life simulation game.
True or False
Answer:
True it is a sim
Explanation:
There are three important components, namely an abductor, a bolt and a coil in a machine. Let , and denote the events that the abductor, bolt and coil fail on a given day, respectively. The events , and are independent and their probabilities of occurring are P()=P()=0.2 and P()=0.3. The machine can continue to function when at most one of the components fail. That is, the machine will fail only when two, or all three, of the components fail.
a)What is the probability that the coil component failed given that the machine failed? That is, compute the conditional probability, P( | machine failed).
(b) What is the probability that the bolt failed on a day that the machine did not fail? That is, compute P( | machine did not fail)
Let us denote the event of machine failing by M. We are asked to find the probability that the coil component failed given that the machine failed. We need to calculate the conditional probability P(C|M).
Now, for the machine to fail, at least two components should have failed. Therefore, the events of the bolt and the abductor failing given that the machine failed are dependent. We know that the machine will fail only when two, or all three, of the components fail.
We are asked to find the probability that the bolt failed on a day that the machine did not fail. We need to calculate P(B|A') where A' is the event that the machine did not fail. Now, we know that for the machine to fail, at least two components should have failed. Therefore, if the machine did not fail, then either none of the components failed or at most one of the components failed.
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What are two parts of a cell reference?
veterinarian office case: part 1a veterinarian office needs your help. they need to keep track of the owner and pet information. they also need to keep track of the appointments and the treatments for each pet.for this question, use the following business rules:each owner and pet have unique ids.each appointment has a unique id.there can be more than one treatment per appointment.in the questions below, select the best primary key(s) for each table.
As per the given business rules, the veterinarian office needs to keep track of owner and pet information, appointments, and treatments for each pet. To ensure that the information is properly organized and managed, it is essential to select the right primary keys for each table.
For the table containing owner information, the primary key should be the unique ID assigned to each owner. This will help in quickly retrieving and updating the information of a specific owner whenever required.Similarly, for the table containing pet information, the primary key should be the unique ID assigned to each pet. This will help in identifying the pet and its related information such as breed, age, medical history, etc.For the table containing appointment information, the primary key should be the unique ID assigned to each appointment. This will help in tracking the appointments of each pet and scheduling new appointments accordingly.For the table containing treatment information, the primary key should be a composite key consisting of the appointment ID and the treatment ID. This is because there can be more than one treatment per appointment, and having a composite key will ensure that each treatment is uniquely identified and associated with the correct appointment.In conclusion, selecting the appropriate primary keys for each table is essential for efficiently managing and organizing the information in a veterinarian office.
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