Given the regression equation Y = 45 - 25X, then the change in Y when X changes by -2 is

Q: Given the regression equation Y = 43 - 10X, the predicted value of Y when X = 9 is O a. -47 O b. -90…

A: The linear regression model is given as Y=43-10X, Now, when X=9, then the predicted value is…

Q: The linear regression equation for the advertising expenditures, x, (in 1000s of dollars) and…

A: The given linear regression equation is y = 50.729x + 104.061. Where x represents the advertising…

Q: In a study, the simple linear regression equation was found as y = - 2.65 + 3.23 * Accordingly, if…

A: Given, y=-2.65+3.23x If x=1.55 then y=?

Q: The table contains the state population and the number of licensed drivers in the state (both in…

A: Given regression model is, Y=0.7X c) The number of licensed drivers in state J in 2014 is 1,037,000…

Q: Given the regression equation Y= 43 - 10X, the predicted value of Y when X = 9 is O A. 90 O B. -90…

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Q: Given the regression equation: Yhat = 4.5 + 67X + 32D, where D is a dummy variable with D=1 if…

A: Regression is the inferential statistic that used to determine the relationship between the…

Q: Suppose the equation of the regression line for the number of emails a person recieves at a…

A: The regression equation is given as y = 10 +4x , where the independent variable x is the number of…

Q: Given the regression equation Y= 43- 10X, the change in Y when X changes by-3 is O A. 30 ОВ. -30 ОС.…

A: The linear model is Y=43-10X. Let the value of X=a, then Y=43-10XY1=43-10a        ... (i) Now, the…

Q: The regression equation created with the sales (Y) and advertising expenditures (X) of 30 companies…

A: To test for auto correlation in the errors in a regression model, we use Breusch-Godfrey test.

Q: Find the multiple regression equation for the data given below. 2 -2 -1 1 2 -3 1 0 -1 2 2 -13 -4 11…

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Q: Example Find the regression equation Y on X for the following data. X: 2 4 6. 8 Y: 15 20 25

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Q: Given the regression equation Y = 43 - 10X, the predicted value of Y when X= 9 is O A. -90 O B. -47…

A: Given regression line: Y =43-10X

Q: A manufacturer of cooking pans is interested in the relationship between the number of months (X)…

A: The regression analysis is a statistical procedure that allow us to find the linear association…

Q: four pairs of data yield r = 0.942 and the regression equation  y-cap = 3x. also, y-bar= 12.75. what…

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Q: If the simple linear regression equation is 6.4-2.0+ b(4), what is the value of b? Please choose…

A: Given that   6.4=2.0+b(4) b=?

Q: Given the following five points: (-2,0),(-1,0),(0,1)(1,1) and (2,3). if the regression equation is…

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Q: In the equation of a linear regression, Y = b¡X + bo , if b1 = -4.7 which means %3D %3D

A: Since , the regression equation is , Y=b1X+b0 Given that b1=-4.7 We want to find the correct…

Q: Analysis of the data from 25 mothers indicates that an infant's birth weight (g), y, can be…

A: Let Y be infants birth rate  X be mothers weight The given regression equation is y^ = 31X + 1501…

Q: If the regression equation is Y = 2 –0.4X , What is the value of Ÿ when X = -3.

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Q: What is the value of y when x = 3, if the equation of the regression line is y 23.1 - 3.8x? 4.73 O b…

A: The linear regression model is y⏞=23.1-3.8x The value at x=3 is y⏞=23.1-3.8x=23.1-3.8×3=11.7

Q: For the regression equation, Y = X – 1, if the mean for Y is MY = 3, what is the mean for X?​

A: It is given that Y=X-1.

Q: A set of n = 15 pairs of scores (X and Y values) produces a regression equation of Y = 2x + 6. Find…

A: The given regression line is, The objective is find out the predicted Y value for each of the…

Q: The regression equation is Y = i + i X.

A: Use the Excel and Perform the Regression. Followings are the Steps to perform the Regression 1) Open…

Q: From the following regression equations: 3X-2Y-10=0 and 24X-25Y+145=0 Find means of X, Y and…

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Q: Use the following table to find the equation of the regression line, between x and y x12.5 34.5 5 y2…

A: Given Information: x y xy x2 y2 1 2 2 1 4 2.5 3 7.5 6.25 9 3 6 18 9 36 4.5 5 22.5 20.25…

Q: Given the regression equation Y = 43 – 10X, the change in Y when X changes by -3 is a. 13 O b. -13 O…

A: If we want to predict the value of a variable, say Y, from the given value of another variable, say…

Q: Given the regression equation Y = 43 - 10X, the predicted value of Y when X = -7 is O A. -113 о в.…

A: The Linear regression model is given as Y=43-10X The predicted value when X=-7 is…

Q: B/Complete: 1- The goal of regression equation is .

A: The Linear Regression Equation has the form Y= a + bX where Y is the dependent variable  X is the…

Q: A set of n = 15 pairs of scores (X and Y values produces a regression equation of Y = 2X + 6. What…

A: From the provided information, Regression equation Y = 2X + 6

Q: Given the regression equation Y = 43 – 10X, the change in Y when X changes by -3 is

A: The slope of the equation is  -10

Q: Given the regression equation Y = 43 – 10X, the change in Y when X changes by +5 is а. -50 O b. +50…

A: The linear model is Y=43-10X Now, let suppose that X=a, then the value of Y is Y=43-10XY1=43-10a…

Q: Consider the regression equation Y=a+bX. Assume that there is a relationship exists between the…

A: The linear regression equation is given as y=a+bx, where 'y' and 'x' are variables and 'a' and 'b'…

Q: Q1. If the regression equation is given by 4x –y + 5 = 0, then the slope of regression line of y on…

A: Given Data: Regression equation: 4x-y+5=0   Re-arranging the equation: 4x-y+5=0y=4x+5

Q: Given the regression equation Y= 43 - 10X, the predicted value of Y when X =-7 is O A. -70 O B. 70 O…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Given the regression equation Y = 43 – 10X, the change in Y when X changes by -3 is O a. -13 O b. 30…

A: Given regression equation Y=43-10X

Q: Analysis of the data from 25 mothers indicates that an infant's birth weight (g), y, can be…

A: From the provided information, Ŷ = 31x + 1501 Here x = mother weight (kg) and y = infant’s birth…

Q: Find the regression equation for the data in the table:     y = 2(0.5)x     y = 0.70x2 - 3.89x +…

A: In this question, concept of regression equation is applied. Regression A linear relationship…

Q: What can you tell me about the following linear regression equation?  Y’ = 3.25x + 19.3

A: From the above data.  We have given that the regression line y on x  Y’ = 3.25x + 19.3 Here the…

Q: 3. The table shows the average price of a personal computer during certain years. year 1997 1999…

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Q: Does the regression equation Y = - 105 - 10X prove that a change in X causes a change in Y Select…

A: Given: The regression line given is  Y = -105 - 10X

Q: With the regression equation Y′=a+bX, the value we are trying to predict is represented by  Y' a b…

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Q: For the relationship between Calories and Carbs, here is the equation of the line of best fit:…

A: The regression equation is Calories=2.36+4.432 Carbs.

Q: Given the regression equation Y= 43- 10X, the change in Y when X changes by+5 is O a. -7 O b. +50 O…

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Q: A multiple regression equation to predict a student's score in College Algebra (ˆyy^) based on their…

A: Given, A multiple regression equation to predict a student's score in College Algebra (y^) based on…

Q: Given the regression equation Y = 43 - 10X, the change in Y when X changes by -3 is A. -30 B. 30 C.…

A: The regression analysis is a statistical procedure that allow us to find the linear association…

Q: Given the regression equation Y=43-10X, the predicted value of Y when x = - 7 is A 70 B -113 C -70 D…

A: Given Regression equation is Y=43-10X If x=-7 then y=?

Q: A regression analysis between sales ( Y in $1,000 ) and advertising (X in $1,000) resulted in the…

A: In the given problem we have given that the regression equation, a regression analysis between sales…

Q: Analysis of the data from 25 mothers indicates that an infant's birth weight (g), y, can be…

A: Given regression equation is y=31x+1501 If x=70kg y=?

Q: A set of n=15 pairs of scores (X and Y values) produces a regression equation of Y 2X + 6. Find the…

A: We have given that a set of n=15 pairs of scores (X and Y values) produces a regression equation of…

Q: Use the following linear regression equation to answer the questions. x1 = 1.0 + 3.9x2 – 8.4x3 +…

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Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.