The ols() method in statsmodels module is used to fit a multiple regression model using "Exam4" as the response variable and "Exam1", "Exam2", and "Exam3" as predictor variables. The output is shown below. A text version is available. What is the correct regression equation based on this output and what is the coefficient of determination? Exam4 = 46.2612 +0.1742 Exam1 + 0.1462 Exam2 + 0.0575 Exam3 coefficient of determination = 0.178 Exam4 = 10.969 +0.120 Exam1 +0.078 Exam2 + 0.053 Exam3 coefficient of determination = 0.178 Exam4 = 46.2612 + 0.1742 Exam1 + 0.1462 Exam2 +0.0575 Exam3 coefficient of determination = 3.329 Exam4 = 10.969 +0.120 Exam1 +0.078 Exam2 + 0.053 Exam3 coefficient of determination = 3.329

Answer:

8

Step-by-step explanation:

It's 54÷6 which equals 8

Answer:

43.75

Step-by-step explanation:

Calculators NEVER lie

2,800 divided by 64 can be calculated by division operation and it will be equal to 44 approximately

Division is a mathematical operation, in which we distribute the number in equal parts, the number on the upper side is the total quantity and the number on the bottom side is equal parts of numbers which have to be distributed.

We denote division by '÷' this symbol.

To divide  2,800 by 64, we can think of it as breaking up 2,800 into 64 equal parts. Each of these parts will have a value of 64, since  2,800 divided by 64 is equal to 44.

In mathematical terms, division is the inverse operation of multiplication. When we divide  2,800 by 64, we are asking, "How many times does 10 fit into  2,800?" The answer is 44 , so  2,800 divided by 64 is equal to 44.

So, in summary,   2,800 divided by 64 is equal to 44, and this means that  2,800 can be evenly divided into 64 parts, each of which has a value of 44 .

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The values of a, b, c, and d, based on the given equation are:

\(a = 10\\b = 3\\c = -6\\d = -5\)

Let's calculate the values of a, b, c, and d based on the given table:

Using the equation \(y = x^2 - 4x - 2\), we can substitute the values of x and find the corresponding values of y:

For x = -3:

\(y = (-3)^2 - 4(-3) - 2 = 9 + 12 - 2 = 19\)

For x = -2:

\(y = (-2)^2 - 4(-2) - 2 = 4 + 8 - 2 = 10\)

For x = -1:

\(y = (-1)^2 - 4(-1) - 2 = 1 + 4 - 2 = 3\)

For x = 0:

\(y = (0)^2 - 4(0) - 2 = 0 - 0 - 2 = -2\)

For x = 1:

\(y = (1)^2 - 4(1) - 2 = 1 - 4 - 2 = -5\)

For x = 2:

\(y = (2)^2 - 4(2) - 2 = 4 - 8 - 2 = -6\)

For x = 3:

\(y = (3)^2 - 4(3) - 2 = 9 - 12 - 2 = -5\)

Now let's match these values with the table:

\(x , y = x^2 - 4x - 2\)

\(\[\begin{align*}(-3, 19) \\(-2, a) \\(-1, b) \\(0, -2) \\(1, -5) \\(2, c) \\(3, d) \\\end{align*}\]\)

From the given table, we have:

\(a = 10\\b = 3\\c = -6\\d = -5\)

Certainly! Here's a 100-word explanation of the given data:

The data provided consists of pairs of values, where the first column represents the x-values and the second column represents the y-values. Each row in the table corresponds to a data point. For instance, when x is \(-3\), the corresponding y-value is \(19\). Similarly, when x is \(-2\), the y-value is denoted as '\(a\)', and when \(x\) is -\(1\), the \(y\)-value is denoted as 'b'.

The pattern continues for the remaining data points, with specific values assigned to \(x \ and \ y\). This data set allows for the representation and analysis of relationships between the variables \(x \ and \ y\).

Therefore, the values of a, b, c, and d are:

\(a = 10\\b = 3\\c = -6\\d = -5\)

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Answer:

x=2

Step-by-step explanation

Answer:

60

Step-by-step explanation:

I took the test, used the girl below's answer and failed :) that is the correct answer <3 gl

Answer:

second option :)

Step-by-step explanation:

Answer:

B.

StartLayout Enlarged left-brace 1st Row 3 x squared minus 4 y squared = 25 2nd row negative 12 x squared + 4 y squared = 22 EndLayout

Step-by-step explanation:

A man wanted to investigate the linear relationship between how many miles he ran and his heart rate in beats per minute. After recording how many miles he ran and his heart rate for 12 different days, he created this 95% confidence interval for 3 miles (160,180). The twelve different days could be considered a random sample of all of his run days. The best interpretation of the confidence interval is Option a) It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute.

Given that the 12 different days could be considered a random sample of all of his run days, the sample statistics of the study can be used to make inferences about the population parameters. Therefore, the 95% confidence interval for 3 miles of (160,180) can be interpreted as There is a 95% chance that the true population average heart rate after running 3 miles is between 160 and 180 beats per minute. Or It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute.

Option a. It can be stated with 95% confidence that his average heart rate after running 3 miles is between 160 and 180 beats per minute is the best interpretation of the confidence interval.

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The equation on solving by factoring method yields no solution.

In this question,

A no solution equation is also known as contradiction. This type of equation is never true, no matter what we replace the variable with. There is no value that will ever satisfy this type of equation.

The equation is -(3z+4)=6z-3(3z+2)

Solving the equation by factoring gives,

⇒ -(3z+4) = 6z-3(3z+2)

By distributive property,

⇒ -3z - 4 = 6z - 3(3z) - 3(2)

⇒ -3z - 4 = 6z - 9z - 6

⇒  -3z - 4 = -3z - 6

On rearranging the equation,

⇒ -3z + 3z = -6 + 4

⇒ 0 = -2

Here LHS is not equal to RHS. Thus the equation on solving by factoring method yields no solution.

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Answer:

See Attached

Step-by-step explanation:

Answer:

13, 21, 34, 55, 89 are the next five numbers in the sequence.

Step-by-step explanation:

It's known as the Fibonacci sequence. Every term is the sum of the previous two. If you add the terms of the sequence then the result of each of the sums will form a sequence as well. For this sequence 1+1=2, 2+3=5, 5+3=8, 8+5=13, 13+8=21, 21+13=34, 34+21=55, 55+34=89 and so on.

Answer:

9 yards

Step-by-step explanation:

36/4=9

Answer:

a) 15:7

b) 1950 ml

c) There were 10 people in the group

Step-by-step explanation:

a) In its basic form, the ratio would be 750:350. However, to get it to it's most basic form, we must find the greatest common factor (GCF) of 750 and 350, which is 50. Then, we divide both numbers by the GCF so that 750 is 15 and 350 is 7. Therefore, the basic form of the ratio is 15:7.

b) First, we can find the amount of chicken stock needed for 12 people, which is just double of the recipe since the recipe is for 6 people. (900 * 2 = 1800). Then, we need to figure out how much chicken stock is required for one person since there are 13 and not 12. We can do this by multiplying 900 by 1/6 (since it's for 1 person out of the 6 people recipe) to get 150. Then, add the amount of chicken stock needed for 12 people and 1 person together. 1800 + 150 = 1950.

c) First, we must figure out how many grams of leeks are required for just one person. We can do this by taking the amount needed in the recipe (for 6 people) and dividing it by 6 to get the amount needed for 1 person. 750 divide by 6 is 125, so 125 g of leeks are required to make soup for 1 person. Then, we take the total amount of leeks that Delia used (1250) and divide that by 125 to get 10.

Answer:

$114.80

Step-by-step explanation:

108 increase 6.3% =

108 × (1 + 6.3%) = 108 × (1 + 0.063) = 114.804

Please attached a diagram drawn with MS Word based on the question parameters, and from a diagram from a similar question.

The length of the rectangle that contains 10 identical squares and has a width of 15 centimeters is 21 centimeters

A square is a quadrilateral that has four sides of the same length and the the four interior angles are each equal to 90°.

Some parts of the question appear missing, please find attached the design of a rectangle based on a similar GCSE question online. The width of the rectangle = 15 cm

The number of squares = 10

The number of squares that make up the width from the drawing = 5

The side length of the square is therefore; 15 cm ÷ 5 = 3 cm

The number of squares that make up the length of the rectangle = 7

The length of the rectangle is therefore, L = 7 × 3 cm = 21 cm

The length of the rectangle = 21 centimeters

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The question wants us to represent your the equation y - 4 = 6()

Answer:

C= c - 72

Step-by-step explanation:I think, I have not done this a looooooong time. so I'm probably wrong.

Answer:

1.3/4

2.2/3/4 or 1/6

3.4/2/3 or 2/3

so we know the equation to get the total forces is

\(\cfrac{Kg\cdot m}{s^2} ~~ \begin{cases} Kg=kilograms\\ m=meters\\ s=seconds \end{cases}\implies Kg\cdot \cfrac{m}{s^2}\implies Kg\cdot (acceleration)\)

the idea being, well, we have to do unit conversion, we know the object has a mass of 80 grams, hmmm that's not Kilograms, however since there are 1000 grams in a Kg, we can just convert that, and the acceleration of it is 20 m/s², so

\(\stackrel{ Kilograms }{\cfrac{80}{1000}}\cdot \stackrel{ accelaration }{20}\qquad \impliedby \textit{sum of the forces}\)

A definite integral is said to be improper if one or both of the limits of integration are infinite, or if the integrand function has a vertical asymptote within the interval of integration.

In other words, an improper integral is one that cannot be evaluated using the usual techniques of integration, such as the fundamental theorem of calculus, because it involves infinite limits or a function that is not integrable over the interval.

For example, the definite integral of f(x) = 1/x from 1 to infinity is an improper integral because the upper limit of integration is infinity, which is not a finite number. Similarly, the definite integral of f(x) = ln(x) from 0 to 1 is an improper integral because the lower limit of integration is 0, and the function has a vertical asymptote at x=0.

To evaluate improper integrals, we use limit processes to determine whether the integral converges (has a finite value) or diverges (has an infinite value). If the integral converges, we can find its value by taking the limit of a related integral as one or both of the limits of integration approach infinity or zero.

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\( [\frac{7}{12} + ( - \frac{5}{12} )] -[ \frac{5}{9} + ( - \frac{2}{9} )] \\ \\ = [ \frac{7}{12} - \frac{5}{12} ] - [ \frac{5}{9} - \frac{2}{9} ] \\ \\ = [ \frac{7 - 5}{12} ] - [ \frac{5 - 2}{9} ] \\ \\ = \frac{2}{12} - \frac{3}{9} \\ \\ = \cancel \frac{2}{12} - \cancel \frac{3}{9} \\ \\ = \frac{1}{6} - \frac{1}{3} \\ \\ = \frac{1 - 2}{6} \\ \\ = - \frac{1}{6} \)

Answer:

         \(\frac{-1}{6}\)

Step-by-step explanation:

\(Sum \ of \ \ \frac{5}{9} \ and \ \frac{-2}{9} =\frac{5}{9} + \frac{-2}{9} = \frac{5-2}{9} = \frac {3}{9} = \frac{1}{3}\)

\(Sum \ of \ \frac{7}{12} \ and \ \frac{-5}{12} = \frac{7}{12} \ + \ \frac{-5}{12} = \frac{7-5}{12} = \frac{2}{12} = \frac{1}{6}\)

\(subtract \ first \ from \ second = \frac{1}{6} - \frac{1}{3} = \frac{1 -2}{6} = \frac{-1}{6}\)

The basic elements of appropriateness, effectiveness, and ethics are associated with interpersonal communication competence.

Interpersonal communication competence refers to the ability to effectively and appropriately communicate with others in various interpersonal contexts. It involves the use of communication skills to achieve desired outcomes while considering ethical principles. Appropriateness refers to the suitability of communication in a given situation, taking into account cultural norms, social expectations, and interpersonal dynamics. Effectiveness pertains to the ability to achieve communication goals and desired outcomes, such as conveying information accurately or persuading others effectively. Ethics refers to the moral principles and standards that guide communication behavior, including honesty, integrity, respect, and fairness. These three elements—appropriateness, effectiveness, and ethics—are fundamental components of interpersonal communication competence, which is crucial for establishing and maintaining successful interpersonal relationships.

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Answer:

C. 41 %

Step-by-step explanation:

The proportion of cases of disease X that are due to smoking among those who smoke can be calculated using the formula for attributable risk (AR) among the exposed: AR = (incidence in exposed - incidence in unexposed) / incidence in exposed.

In this case, the incidence in exposed (smokers) is 56/1,000 and the incidence in unexposed (nonsmokers) is 33/1,000. Plugging these values into the formula, we get:

AR = (56/1000 - 33/1000) / (56/1000) = 23/56 ≈ 0.41

So the proportion of cases of disease X that are due to smoking among those who smoke is approximately 41%, which corresponds to answer choice C

yw;)

In inferential statistics, the objective is to determine the probability of the alternative hypothesis being true or the null hypothesis being true.

This involves using sample data to make inferences and draw conclusions about a larger population. By analyzing the data and performing statistical tests, we assess the likelihood of the alternative hypothesis or the null hypothesis being accurate.

The alternative hypothesis represents a claim or statement that contradicts the null hypothesis and suggests that there is a significant relationship or difference between variables. To determine its probability, statistical methods such as hypothesis testing and p-values are employed. These methods evaluate the strength of evidence against the null hypothesis and support the alternative hypothesis when the evidence is substantial.

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Step-by-step explanation:

you can ask questions for clarification

By performing inverse operations, we determined that the solution to the equation 21 - b = 11 is b = 10.

To solve the equation 21 - b = 11, we need to isolate the variable b on one side of the equation. We can do this by performing inverse operations.

Starting with the given equation:

21 - b = 11

To isolate b, we can subtract 21 from both sides of the equation:

21 - b - 21 = 11 - 21

Simplifying the equation gives us:

-b = -10

Now, we can solve for b by multiplying both sides of the equation by -1 to change the sign of the variable:

-1 * -b = -1 * -10

This results in:

b = 10

Therefore, the solution to the equation 21 - b = 11 is b = 10.

To check our solution, we substitute b = 10 back into the original equation:

21 - (10) = 11

Simplifying the left-hand side of the equation gives us:

11 = 11

Since both sides of the equation are equal, our solution b = 10 is correct.

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Answer:

3/40x x (35x-24)

Step-by-step explanation:

hope this helps

Answer:

the answer is 18.248 so it would either be c or d.

An expression that defines this quadratic function is ax² + bx + c = 0.

An expression that defines the quadratic equation in vertex form is equal to y = -16(x - 1)² + 20 and y = -16x² + 32x + 4.

Given the following data:

A quadratic function can be defined as a mathematical expression that can be used to define and represent the relationship that exists between two or more variable on a graph.

In Mathematics, the graph of any quadratic function is parabolic because it is a u-shaped curve. Also, the standard form of a quadratic function is given by;

ax² + bx + c = 0

Mathematically, the standard equation with the vertex for any parabola is given by:

y = a(x - h)² + k.

where:

Substituting the given parameters into the formula, we have;

y = a(x - h)² + k.

4 = a(0 - 1)² + 20.

4 = a + 20

a = -20 + 4

a = -16.

Therefore, an expression that defines this quadratic function is equal to ax² + bx + c = 0.

For the quadratic equation in vertex form, we have:

y = -16(x - 1)² + 20.

y = -16(x - 1)(x - 1) + 20.

y = -16(x² - x - x + 1) + 20.

y = -16(x² - 2x + 1) + 20.

y = -16x² + 32x - 16 + 20.

y = -16x² + 32x + 4.

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am really thinking about reporting you but this is fun uenqeoisadcvhidw89 f9dh 98yfwrehfipugwe- we89hfa n9af9whajfd wn-98hweAnswer:

is fun

Step-by-step explanation:

poinst