Let the equations of the regression lines be expressed as 8X-2Y = 0 and 3Y-2X =9. Then find the correlation between X and Y

Q: If variable X remains constant as variable Y decreases, the correlation is said to be: A. negative…

A: If variable X remains constant as variable Y decreases, then there is no correlation between X and…

Q: The correlation between the depth (in feet) and the length (in feet) for a sample of caves is found…

A: Given, The correlation between the depth (in feet) and the length (in feet) for a sample of caves is…

Q: A set of n = 15 pairs of scores (X and Y values) produces a correlation of r = 0.40. If each of the…

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Q: The equations of two lines of regression obtained in a correlation analysis are the following : 2X =…

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Q: Below shows the linear relationship between first year college GPA and high school GPA For both…

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Q: When the correlation coefficient, r, is close to one: a. There is no relationship between the two…

A: We know that,  The linear correlation (r) between X and Y two variables, the correlation values lies…

Q: which of the following regressions represents the strongest negative linear relationship between x…

A: The correlation coefficient r is used to measure the linear relationship between two variables X and…

Q: For the regression equation, Ŷ = –2X + 6, what can be determined about the correlation between X and…

A: The given regression line is: Ŷ = –2X + 6

Q: Suppose that you run a correlation and find the correlation coefficient is -0.436 and the regression…

A: Here you're given the correlation coefficient (r) is -0.436 and the regression equation is y⏞ = -…

Q: Develop the equation of the simple linear regression line for this data. Then, give a brief…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: If the coefficient of determination is calculated as 0.48 and regression equation y = 2.4 – 3.5x,…

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Q: In order to study the relation between the number of hours which ten persons studied for a French…

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Q: Given the equation of a regression line is   = -5.5x - 9.4, what is the best predicted value for y…

A: The predicted value in case of regression model is obtained by putting the the value of explanatory…

Q: In a laboratory experiment on correlation research study the equation of the two regression lines…

A: The regression equations are 2x-y+1=03x-2y+7=0. For the mean of x and Y, we solve the two regression…

Q: The equation used to predict college GPA​ (range 0-4.0) is y=0.18+0.53x1+0.002x2​, where x1 is high…

A: Given, The equation used to predict college GPA​ is y=0.18+0.53x1+0.002x2​, where x1 is high school…

Q: If there is a positive correlation between X and Y then in the regression equation, Y = bX + a,…

A: Solution-: If there is a positive correlation between x and Y then in the regression equation,…

Q: Consider the equation of the regression line y = 25 - 2.5x and ỹ = 12, %3D Find y when x 6 assuming…

A: Regression line isy=25-2.5xand y = 12

Q: ..... The equation of the regression line is y = x+

A: Given : X Y 20 2.67 18 3.22 17 2.69 16 3.71 14 3.83 12 4.43 11 3.76 9 5.18

Q: If the coefficient of correlation is .4, the percentage of variation in the dependent variable…

A: Given,coefficient of correlation(r)=0.4

Q: The coefficient of correlation of the two variables a) is negative. b) is positive. c) should have…

A: The given plot shows the scatterplot.

Q: The sign (+ or -) of the correlation coefficient tells us the _________ , where the number (0-1)…

A: Correlation: Correlation a  degree relationship between two data sets. It can be denoted as r. The…

Q: If the coefficient of correlation r = 1, then the best-fit linear equation will actually be…

A: In general, when the correlation coefficient r=1, then the best-fit linear equation will actually be…

Q: If two variables are ________ linearly correlated, one of the variables tends to decrease as the…

A: Correlation is measure of linear association between two quantitative variables. The variables are…

Q: Let the equations of the regression lines be expressed as 8x-2y=0 and 3y-2x=9. Then the correlation…

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Q: The data show the number of felony convictions, in hundreds, and the crime rate, in crimes per…

A: The data show the number of felony convictions, in hundreds, and the crime rate, in crimes per…

Q: In a laboratory experiment on correlation research study the equation of the two regression lines…

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Q: Let y = 0. 5 x +40 Be the regression equation() And x = 0. 5 y +20 Be the regression equation Then…

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Q: If there is a positive correlation between X and Y, what can you conclude about the equation of the…

A: Correlation is used to measure the strength of association between the two numerical variables. It…

Q: f there is a positive correlation between X and Y, then the regression equation Y = bX + a will have…

A: Correlation: Correlation analysis is used to measure the strength of the association between…

Q: A researcher collected data on people's heights and their shoe sizes from 500 people (N=500). Then,…

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Q: Given that the linear correlation coefficient r is found to be 0.867, what is the proportion of the…

A: Here Given linear correlation coefficient =r =0.867

Q: If variable X remains constant as variable Y decreases, the correlation is said to be: zero negative…

A: We have to find  correct answer.

Q: A sample of 40 women is obtained, and their heights (in inches) and pulse rates (in beats per…

A: The regression line is y = 18.2 + 0.920x

Q: A regression study was done for 20 cities with latitude and average May temperature as the…

A: Given information: The data represents the results of regression analysis.

Q: Two variable are found to have a strong positive linear correlation. Pick the regression equation…

A: Solution-: We pick the regression equation that best fits this scenario.

Q: The correlation coefficient betweem anxiaty and exam scorea of the students is -0.6 .so what is the…

A: Here correlation coefficient is negative. Therefore as exam score increases anxiaty decreases.  60℅…

Q: Daphne, who graduated from one of the prestigious schools in Cebu, was asked by her boss to estimate…

A: The given regression equation is, y = 1.304 + 0.602 x Where, Dependent variable = y = Demand of…

Q: Let the equations of the regression lines be expressed as 8X - 2Y = 0 and 3Y – 2X = 9 Then the…

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Q: plain in simple language why knowing only these correlations enables you to say that prediction of…

A: Correlation coefficient  The correlation coefficient is a statistical measure of the strength of the…

Q: Two variables have a positive linear correlation . Does the dependent variable increase or decrease…

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Q: The table shows the numbers of new-vehicle sales (in thousands) in the United States for Company A…

A: x y x-x¯ y-y¯ x-x¯2 y-y¯2 x-x¯y-y¯ 4162 4893 1080.5 632 1167480.25 399424 682876 3923 4833…

Q: The table below gives the age and bone density for 5 women. Use the equation of the regression line,…

A: Calculate the following values. x y (x - mean_x)2 (y - mean_y)2 (x - mean)*(y - mean_y) 39 355…

Q: The equation used to predict college GPA (range 0-4.0) is y= 0.17 +0.52x, +0.002x,, where x, is high…

A: Given data: The equation used to predict college GPA is: y^=0.17+0.52x1+0.002x2…

Q: Suppose f(x,y)=10x2y, 0<y<x<1, What is the Correlation of the variable X and Y?

A: We have E[X] = 0.833 E[X2] = 0.714 Var(X) = 0.0201   E[Y] = 0.556 E[Y2] = 0.357 Var(Y) = 0.0479…

Q: A correlation of r = +0.68 will generate more accurate predictions than a correlation of r = -0.95.…

A: A correlation of r = +0.68 will generate more accurate predictions than a correlation of r = -0.95.…

Q: It is known that the linear regression equation: y= -2.88+1.77x, with a coefficient of determination…

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Q: The data in the table can be entered into a calculator to determine a linear equation of best fit…

A: It is an important part in statistics . It is widely used in correlation analysis .

Q: shows the linear relationship between first year college GPA and high school GPA For both variables…

A: Given: The graph is as shown below Variables: High school GPA and college GPA

Q: If the correlation coefficient between two variables, X and Y, equals one, what can be said of the…

A: Given Correlation between X and Y is 1

Q: If the regression equation is y =1.3+0.20x, and r =0.81 then the correlation is equal to

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