Based on this output table, what is the average coding test score for the beginner coder? coding test score coder status mean n standard deviation advanced 93. 2000 3 5. 00000 intermediate 89. 5000 2. 70711 beginner 73. 3333 3 6. 42910 total 84. 7500 8 10. 51190
Answers
The average coding test score for the beginner coders is 73.3333, indicating a lower level of proficiency compared to intermediate and advanced coders.
Based on the provided output table, the average coding test score for the beginner coders is 73.3333. This value is obtained by taking the mean score for the "coding test score" column corresponding to the "beginner" coder status.
The table also provides information about the number of observations (n) and the standard deviation for each category. In this case, there are a total of 3 observations for beginner coders, with a standard deviation of 6.42910.
The average score of 73.3333 suggests that, on average, beginner coders performed lower on the coding test compared to intermediate and advanced coders. The mean score for advanced coders is 93, indicating a higher level of proficiency, while intermediate coders have an average score of 89.5.
It is worth noting that the standard deviation for beginner coders is relatively high at 6.42910. This suggests a wider variation in the scores within the beginner coder group compared to the other groups.
However, the wide standard deviation suggests that there is a considerable range of scores within the beginner coder group.
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Related Questions
during a lab activity, a 14-year-old student took his resting pulse rate. he counted 20 beats in 20 seconds. he calculated his pulse rate for a minute and compared the result to the data shown in the table below. is his pulse rate in the normal range for children?
Answers
Yes, his pulse rate is in the normal range for children. His pulse rate was calculated to be 120 beats per minute, which falls within the range of 60-100 beats per minute.
The student took his resting pulse rate by counting the number of beats in 20 seconds. He then multiplied his result by three to calculate his pulse rate for a minute. To determine if his pulse rate was within the normal range for children, he compared his result to the data shown in the table. His pulse rate of 120 beats per minute was within the range of 60-100 beats per minute, so it was considered to be normal for children. To ensure accuracy, the student could have taken his pulse rate for a longer period of time, such as 30 or 60 seconds, before calculating his pulse rate for a minute. This would have given him a more accurate result.
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find the median data 46,22,46,49,45,39,40,42,41,39,40,36
Answers
Answer:
median is 40.5
Step-by-step explanation:
22, 36, 39, 39, 40, 40, 41, 42, 45, 46, 46, 49
half way between numbers in numerical order
lands between 40 and 41
40.5
Answer:
41
Step-by-step explanation:
1. First you have to put the numbers in order from least to greatest:
22 36 39 39 40 40 41 42 45 46 46 49
2. Then cross out each number until you find the one that in the middle
For example first you would cross out 22 then 49 then to 36 then 46 and you get the idea
need this for geometry
Answers
The value of the missing leg using Pythagoras theorem is 12.5.
What is Pythagoras theorem?Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“
To calculate the missing leg, we use Pythagoras theorem.
a² = b²+c²..................... Equation 1Where:
a = 16b = 10 c = Missing legSubstitute these values into equation 1 and solve for c
16² = 10²+c²c² = 16²-10²c² = 256-100c² = 156c = √156c = 12.5Learn more about Pythagoras theorem here: https://brainly.com/question/28981380
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She selects 150 trees at random from her orchard and uses this fertilizer on those trees and estimates the following regression: Y
^
i
=600+4.93X i
, where Y
^
i
denotes the predicted number of apricots obtained from the I th tree and X i
denotes the number of units of fertilizer used on the I th tree. A. H 0
:β 1
≥5.14 and H 1
:β 1
<5.14. B. H 0
:β 1
>4.93 and H 1
:β 1
≤4.93. C. H 0
:β 1
=5.14 and H 1
:β 1
=5.14. D. H 0
:β 0
=4.93 and H 1
:β 0
=4.93. Suppose the standard error of the estimated slope is 0.74. The t-statistic associated with the test Wendy wishes to conduct is (Round your answer to two decimal places. Enter a minus sign if your answer is negative.1
Answers
Given statement solution is :- The t-statistic associated with the test is approximately -0.28.
The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesised value relative to its standard error. Through the Student's t-test, it is utilised in hypothesis testing. In a t-test, the t-statistic is used to decide whether to accept or reject the null hypothesis.
To find the t-statistic associated with the test, we need to calculate the test statistic using the estimated slope coefficient, the null hypothesis, and the standard error.
The estimated slope coefficient is 4.93.
The null hypothesis is H₀: β₁ ≥ 5.14 (stating that the true slope coefficient is greater than or equal to 5.14).
The predicted slope's standard error is 0.74.
The formula to calculate the t-statistic is:
t = (estimated slope - hypothesized slope) / standard error
Plugging in the values:
t = (4.93 - 5.14) / 0.74
t = -0.21 / 0.74
t ≈ -0.28 (rounded to two decimal places)
Therefore, the t-statistic associated with the test is approximately -0.28.
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Estimate and then solve 1,029 ÷ 21 = ___. (4 points)
a
3.9
b
39
c
49
d
490
Answers
i didn’t have to estimate because 21 times 49 gives you 1,029
Hope this is helpful!!!
c. what proportion of babies have a birthweight over 4,000 grams? what proportion of babies have a birthweight between 3,200 and 3,800? use the
Answers
The proportion of babies have a birthweight over 4,00 grams is 0.62% and the proportion of babies have a birthweight between 3,200 and 3,800 is 86.64%.
How to calculate proportion?
Assumed,
mean = μ = 3500
standard deviation = σ = 200
For proportion over 4,000 grams, use this formula
P(x>4,000) = P(z>\(\frac{x-\mu}{\sigma}\))
P(x>4,000) = P(z>\(\frac{4000-3500}{200}\))
= P(z>2.5)
Look z score table for 2.5. So, z = 0.9938. Since is over so 1 - the result
= 1 - 0.9938
= 0.0062 or 0.62%
For proportion between 3,200 and 3,800 grams, use this formula
P(3,200<x<3,800) = P(\(\frac{x-\mu}{\sigma}\)<z<\(\frac{x-\mu}{\sigma}\))
P(3,200<x<3,800) = P(\(\frac{3200-3500}{200}\)<z<\(\frac{3800-3500}{200}\))
= P(-1.5<z<1.5)
= P(z<1.5) - P(z<-1.5)
Look z score table for 1.5 and -1.5. So, z for 1.5 = 0.9332 and z for -1.5 = 0.0668
= 0.9332 - 0.0668
= 0.8664 or 86.64%
Your question is incomplete, but this answer uses assumptions and general formulas that can be used.
Thus, the proportion of babies have a birthweight over 4,00 grams is 0.62% and the proportion of babies have a birthweight between 3,200 and 3,800 is 86.64%.
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a quasi-experimental design attempts to
Answers
The correct option A. quasi-experimental design; used to show that the independent variable's effect can be reversed.
Explain the quasi-experimental design?In that an independent variable is manipulated, quasi-experimental research is comparable to experimental research.
Similar to real trials, the quasi-experimental research approach seeks to establish the causal link between a variables under study. A quasi-experimental design, like a true experiment, seeks to establish a cause-and-effect link here between independent and dependent variable. However, unlike actual experiments, quasi-experimental studies use non-random criteria when assigning individuals to groups. A quasi-experiment, however, does not rely upon random assignment, unlike an actual experiment. Instead, non-random criteria are used to classify participants into groups.Thus, quasi-experimental design used to show that the independent variable's effect can be reversed.
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The correct question is-
One method used to demonstrate the reversibility of the effect of the independent variable is a(n):
A. quasi-experimental design.
B. interrupted time series design.
C. control series design.
D. ABA design.
a package is accidentally dropped from a helicopter from a height of 3,136ft. if the equation for height as a function of time is h(t) = -16t^2 + initial height where t is time in seconds and h(t) is height in feet, how many seconds will it take for the package to hit the ground?
Answers
Answer:
t = 14 seconds
Step-by-step explanation:
Given that,
A package is accidentally dropped from a helicopter from a height of 3,136ft.
The equation for height as a function of time is :
\(h(t) = -16t^2 + \text{initial height}\)
So,
\(h(t) = -16t^2 +3,136\)
When it hits the ground, h(t) = 0
So,
\(-16t^2 +3,136=0\\\\-16t^2=-3136\\\\t^2=\dfrac{3136}{16}\\\\t^2=196\\\\t=14\ s\)
So, it will take 14 seconds for the package to hit the ground.
Amplitude of y=sin(x)
Answers
Answer:1he amplitude of y=s i n x is 1
Step-by-step explanation:
The amplitude of the function y = sin(x) is 1, because the maximum value of the sine function is 1 and the minimum value is -1. The amplitude is defined as half the difference between the maximum and minimum values of the function.
So in this case, the maximum value of the sine function is 1 and the minimum value is -1, which gives a difference of 2. Half of 2 is 1, so the amplitude of the function y = sin(x) is 1
I hope this helps.
A matched pairs experiment compares the taste of instant with fresh-brewed coffee. Each subject tastes two unmarked cups of coffee, one of each type, in random order and states which he or she prefers. Of the 60 subjects who participate in the study, 21 prefer the instant coffee. Let p be the probability that a randomly chosen subject prefers fresh-brewed coffee to instant coffee. (In practical terms, p is the proportion of the population who prefer fresh-brewed coffee.)
(a)
Test the claim that a majority of people prefer the taste of fresh-brewed coffee. Report the large-sample z statistic. (Round your answer to two decimal places.)
Answers
The given data is,A matched pairs experiment compares the taste of instant with fresh-brewed coffee. Each subject tastes two unmarked cups of coffee, one of each type, in random order and states which he or she prefers.
Of the 60 subjects who participate in the study, 21 prefer the instant coffee. We need to find the probability that a randomly chosen subject prefers fresh-brewed coffee to instant coffee, let's say p. The formula to calculate the proportion of the population is:
p = (n1 + n2) / (x1 + x2)n1 and n2 are the sample sizes of two categories and x1 and x2 are the number of favorable outcomes from the respective categories. Here, n1 = n2 = 60 and x1 = 39 (since 21 out of 60 prefer instant coffee, the remaining 39 must prefer fresh-brewed coffee).Now, p = (60 + 60) / (39 + 21) = 1.2. Since p is a probability, it must be between 0 and 1. But here, p is greater than 1, which is not possible. Therefore, there is an error in the given data and we cannot proceed with the calculation.
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a) 2x -1.5 = 2x - 1.5
-
b) 2v + 4 = -1
Answers
Answer:
a) all real numbers
b) v = -2.5
Step-by-step explanation:
a) 2x - 1.5 = 2x - 1.5
subtract 2x from both sides of the equation
2x - 1.5 - 2x = 2x - 1.5 - 2x
1.5 = 1.5
since 1.5 will always equal 1.5 regardless of what x is,
the solution is all real numbers
b) 2v + 4 = -1
subtract 4 from both sides of the equation
2v + 4 - 4 = - 1 - 4
2v = -5
divide both sides of the equation by 2
2v/2 = -5/2
v = -2.5
Patrick rosses a penny and a number cube, with faces numbered 1 through 6, at the
same time,
A. Are the events dependent or independent Explain your thinking,
Answers
The events are independent because the outcome of one does not affect the outcome of the other one.
____ 13. Use Scenario 3-2. If heart disease death rate were expressed as deaths per 1,000 people instead of as deaths
per 100,000 people, how would the correlation r between wine consumption and heart disease death rate
r would not change
Answers
The correlation between two variables is an important measure that helps us understand the relationship between them. In Scenario 3-2, if the heart disease death rate is expressed as deaths per 1,000 people instead of as deaths per 100,000 people, it would not change the correlation (r) between wine consumption and heart disease death rate.
The correlation coefficient (r) measures the strength and direction of the relationship between two variables. If the heart disease death rate is expressed as deaths per 1,000 people instead of as deaths per 100,000 people, it would change the units in which the death rate is expressed, but it would not change the underlying relationship between wine consumption and heart disease death rate.
In other words, regardless of the units in which the death rate is expressed, the correlation between wine consumption and heart disease death rate would remain the same. This is because the correlation measures the relationship between two variables, not the units in which they are expressed. It is important to note that expressing the death rate in different units may make it easier or more difficult to understand the relationship between two variables, but it does not change the underlying correlation.
In conclusion, the correlation (r) between wine consumption and heart disease death rate would not change if the death rate were expressed as deaths per 1,000 people instead of as deaths per 100,000 people.
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I need help immediately!!!!
Answers
Answer:
but the answer I already there that's just an example
Answer:
X = 1.5
Step-by-step explanation:
So the answer is right
because look below
When we subtract a velocity vector from another velocity vector, the result is:
A. an acceleration.
B. another velocity.
C. a scalar.
D. a displacement.
Answers
When we subtract a velocity vector from another velocity vector, the result is B. another velocity.
When we subtract a velocity vector from another velocity vector, we are essentially finding the difference between the two velocities. This difference is also a velocity vector, but in a different direction and with a different magnitude. Therefore, the answer is another velocity, option B.
It is important to note that acceleration is a change in velocity, not the result of subtracting one velocity from another. Scalar refers to a quantity with only magnitude, whereas velocity is a vector quantity with both magnitude and direction. Displacement refers to the change in position of an object and is not directly related to subtracting velocity vectors.
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a drawer contains 6 red so cks, 4 green so cks, and 2 black so cks. two so cks are chosen at random. what is the probability that they match?
Answers
Answer: 2/12 (1/6 simplified) I think I don’t know I didn’t think much about it
Step-by-step explanation:
i dont know help me i am so confused?
Answers
Answer:
the answer should be 16, if you're looking for X that is
A trader bought a bags of rice at a cost c= 24x +105 andcsoldcthem at a price s=33x-x^2/30.find the expression for the profit(2) if 20 bags of the were sold, calculate the percentage profit
Answers
The profit from selling 20 bags of rice is 61.67.e percentage profit from selling 20 bags of rice is approximately 10.54%.
To calculate the profit from selling 20 bags of rice, we need to determine the cost of the bags, the selling price, and subtract the cost from the selling price. Using the given cost equation c = 24x + 105 and the selling price equation s = 33x - x^2/30, we can calculate the profit expression and then determine the percentage profit.
Given that the cost equation is c = 24x + 105, we can substitute the value of x (which represents the number of bags) with 20 to find the cost of 20 bags.
c = 24(20) + 105
c = 480 + 105
c = 585
The cost of 20 bags of rice is 585.
Next, we use the selling price equation s = 33x - x^2/30 to find the selling price of 20 bags.
s = 33(20) - (20^2)/30
s = 660 - 400/30
s = 660 - 400/30
s = 660 - 13.33
s = 646.67
The selling price of 20 bags of rice is 646.67.
To calculate the profit, we subtract the cost from the selling price:
Profit = Selling Price - Cost
Profit = 646.67 - 585
Profit = 61.67
The profit from selling 20 bags of rice is 61.67.
To calculate the percentage profit, we divide the profit by the cost and multiply by 100:
Percentage Profit = (Profit / Cost) * 100
Percentage Profit = (61.67 / 585) * 100
Percentage Profit ≈ 10.54%
Therefore, the percentage profit from selling 20 bags of rice is approximately 10.54%.
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Find the area of triangle XYZ if length XY equals 7 and length XZ equals 4.3. You also
know that angle Y equals 79°.
Answers
Answer:
A ≈ 14.8 units²
Step-by-step explanation:
the area (A) of the triangle is calculated as
A = \(\frac{1}{2}\) yz sin Y ( that is 2 sides and the angle between them )
where x is the side opposite ∠ X and z the side opposite ∠ Z
here y = XZ = 4.3 and z = XY = 7 , then
A = \(\frac{1}{2}\) × 4.3 × 7 × sin79°
= 15.05 × sin79°
≈ 14.8 units² ( to 1 decimal place )
pls help. i have to write it in exponential form
Answers
X × X - X × X × X × X × X + 17= X × X × X + 2
Please help ASAP
1.
Three times a number equals 40 more than five times the number what is the number
2.
A number equals four less than three times the number what is the number?
Answers
Answer:
Step-by-step explanation:
an pail collects 1/3 of water in 5/6 of a minute. At what rate is the ail collecting water?
Answers
Answer:
You end with 2/5 of and inch per minute
see attached photo for question
Answers
Answer:\(6\pi\)
Step-by-step explanation:
240/360 can be simplified to 2/3. r^2 can be substituted for 9, and 2/3*9 is 6.
A cell phone company offers its customers two monthly plans. Plan A costs $20 per month plus
$0.15 for each minute used. Plan B costs $15 per month plus $0.20 for each minute used.
Part A
Write equations to represent the cost of each plan.
Plan A
Plan B
Part B
Graph the equations
Part C
For how many minutes is the cost the same?
Show your work.
Answers
what is the approximate probability that the actual proportion requiring aid will exceed that value? (round your answer to four decimal places.)
Answers
The approximate probability that the actual proportion requiring aid will exceed 0.08 is 0.5 (or 50%) rounded to four decimal places.
Given: The number of members in town = 400
The number of members requiring aid = 32
The proportion of members requiring aid = (number of members requiring aid) / (total number of members) = 32 / 400 = 0.08
To find the approximate probability that the actual proportion requiring aid will exceed this value, we need to assume a distribution for the proportion of members requiring aid. Assuming a normal distribution, we can use the Central Limit Theorem to approximate the sampling distribution of the sample proportion.
The standard error of the sample proportion is given by:
SE = √[p(1-p)/n]
where p is the population proportion and n is the sample size.
Substituting the values, we get:
SE = sqrt [(0.08 × 0.92) / 32] = 0.043
To find the probability that the actual proportion requiring aid will exceed 0.08, we can standardize the distribution using the z-score formula:
z = (x - p) / SE
where x is the value of the proportion we are interested in, p is the population proportion, and SE is the standard error of the sample proportion.
Substituting the values, we get:
z = (0.08 - 0.08) / 0.043 = 0
The probability that the actual proportion requiring aid will exceed 0.08 is equal to the probability of observing a z-score greater than 0, which is 0.5 (or 50%).
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The question is -
The towing service in town contracts with the club to come to the aid of up to 32 members in the next 12-month period. What proportion is that of the 400 members in town? .08 What is the approximate probability that the actual proportion requiring aid will exceed that value? (Round your answer to four decimal places.)
Common difference of the arithmetic sequence -6,-13,-20
Answers
Answer:
-7
Step-by-step explanation:
-13 - (-6)
=> -13 + 6
=> -7
So Common Difference = -7
Will give Brainliest! X and Y are 2 complementary angles such that Y is 8 degrees larger then X. Find the value of X
Answers
Answer:
x = 41°
Step-by-step explanation:
Complementary angles are angles that add up to 90°
y = x + 8
x + y = 90°
Plug in x+8° for y:
-Chetan K
what is \(( \frac{78}{142} ^{9} )^{2} \times 9 \sqrt{5.2} \) help!!!! For now I just get that on the picture.
^{2} \times 9 \sqrt{5.2} [/tex] help!!!! For now I just get that](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/FjKb3S0E8qcVRXmNCipCrKo3wDJR5Ghi.jpeg)
Answers
The given expression is
\(\frac{9\cdot39^{18}\cdot\sqrt{130}}{5\cdot71^{18}}\)First, we solve the powers and the root
\(\frac{9\cdot4.3\times10^{10}\cdot11.4}{5\cdot2.1\times10^{33}}\)We solve the products on each side of the fraction
\(\frac{441.18\times10^{10}}{10.5\times10^{33}}\)Now, we divide whole numbers each other and powers each other
\(\begin{gathered} 42\times10^{10-33} \\ 42\times10^{-23} \end{gathered}\)Therefore, the answer is 42x10 to the -23th power, approximately.a particle's position is given by =cos(9) meters. how often does its velocity reach zero?
Answers
This velocity reaches zero at regular intervals of π radians.
The velocity of a particle is given by its position as a function of time. In this case, the position is given by x = cos(9) meters. This means that the particle is moving along the x-axis, with a maximum displacement of cos(9) meters from the origin.
The velocity of the particle at any given time is given by the first derivative of the position with respect to time. In this case, the velocity of the particle is given by v = -sin(9) meters/second. This means that the velocity of the particle is equal to the negative sine of 9 meters per second.
As the velocity of the particle is equal to the negative sine of 9 meters per second, it follows that the velocity of the particle reaches zero whenever the sine of 9 is equal to zero. This means that the velocity of the particle reaches zero whenever 9 is equal to 0, π, 2π, 3π, etc. In other words, the velocity of the particle reaches zero at regular intervals of π radians.
To summarize, the position of a particle is given by x = cos(9) meters. This means that the velocity of the particle is given by v = -sin(9) meters/second. This velocity reaches zero at regular intervals of π radians.
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) 1. a company is manufacturing a new dietary supplement pill that promotes body fat reduction. a. the company will supply 60 pills for a price of $40 and will supply 100 pills for a price of $60. determine a linear supply function p = s(q), for this product. [note the variables to use with p = s(9), so do not give the answer using x and y] b. the demand for this new dietary supplement pill is 50 pills at a price of $47.50 and 80 pills at a price of $32.50. determine a linear demand function p = d(9), for this product. c. find the equilibrium price and quantity for the new dietary supplement pill.
Answers
The supply function is p = s(9) = -5q + 100, and the demand function is p = d(9) = 1.25q + 22.50. The equilibrium price is $35, and the equilibrium quantity is 40 pills.
a. To determine the linear supply function, we can use the given price and quantity combinations. When the company supplies 60 pills for $40 and 100 pills for $60, we can form two points: (60, 40) and (100, 60). Using these points, we can find the slope of the supply function, which is -5, and the y-intercept, which is 100. Therefore, the supply function is p = s(9) = -5q + 100, where p represents the price and q represents the quantity supplied.
b. To determine the linear demand function, we can use the given price and quantity combinations. When the demand is 50 pills at a price of $47.50 and 80 pills at a price of $32.50, we can form two points: (50, 47.50) and (80, 32.50).
Using these points, we can find the slope of the demand function, which is 1.25, and the y-intercept, which is 22.50. Therefore, the demand function is p = d(9) = 1.25q + 22.50, where p represents the price and q represents the quantity demanded.
c. The equilibrium price and quantity occur at the intersection of the supply and demand functions. By setting the supply function equal to the demand function and solving for q, we can find the equilibrium quantity. Plugging this value back into either the supply or demand function will give us the equilibrium price.
By solving the equations, we find that the equilibrium quantity is 40 pills and the equilibrium price is $35. At this price, the quantity supplied equals the quantity demanded, leading to market equilibrium.
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