Question details

Use the regression equation to predict the value of y for x = -0.2. Assume
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  1. Self check
    Use the regression equation to predict the value of y for x = -0.2. Assume that the variables x and y have a significant correlation.
     

A.

1.135

B.

0.381

C.

-2.037

D.

1.733

 Provide an appropriate response.
Match the regression equation with the appropriate graph. (Note that the x- and y-axes are broken.)
  = 1.72x + 84.99

A.

 

B.

 

C.

 

D.

 

 Provide an appropriate response.
Find the equation of the regression line for the given data.

A.

 = -1.885x + 0.758

B.

  = -0.758x - 1.885

C.

  = 0.758x + 1.885

D.

 = 1.885x - 0.758

 Provide an appropriate response.
Calculate the correlation coefficient, r, for the data below.

A.

0.819

B.

0.881

C.

0.792

D.

0.990

 

 Provide an appropriate response.
Given the supply of a commodity, x, and the price of a commodity, y, would you expect a positive correlation, a negative correlation, or no correlation?

A.

positive correlation

B.

no correlation

C.

negative correlation

 

HW new

 

Provide an appropriate response.Match the regression equation with the appropriate graph. (Note that the x- and y-axes are broken.)
  y= -1.1x + 52.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Provide an appropriate response.
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. What is the best predicted value for y given  Assume that the variables x and y have a significant correlation.

 

A.

71

B.

72

C.

69

D.

70

Provide an appropriate response.
Given the size of a human's brain, x, and their score on an IQ test, y, would you expect a positive correlation, a negative correlation, or no correlation?

 

 

A.

negative correlation

B.

positive correlation

C.

no correlation

 

 

 

 

 

 

 

 

 

 


 Provide an appropriate response.
Use the regression equation to predict the value of y for x = -0.2. Assume that the variables x and yhave a significant correlation

 

A.

1.135

 

B.

1.733

 

C.

0.381

 

D.

-2.037

Provide an appropriate response

Construct a scatter plot for the given data. Determine whether there is a positive linear correlation, negative linear correlation, or no linear correlation

 

QProvide an appropriate response.
Find the equation of the regression line for the given data.

 

A.

  = -0.552x + 2.097

B.

  = 0.522x - 2.097

C.

  = 2.097x + 0.552

D.

 = 2.097x - 0.552

Question Provide an appropriate response.
Calculate the correlation coefficient, r, for the data below

A.

0.819

B.

0.990

C.

0.881

D.

0.792

Provide an appropriate response.
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Find the equation of the regression line for the given data.

A.

  = 5.044x + 56.113

B.

 = -56.113x - 5.044

C.

  = 56.113x - 5.044

D.

  = -5.044x + 56.113

 

Question Provide an appropriate response.
Given the supply of a commodity, x, and the price of a commodity, y, would you expect a positive correlation, a negative correlation, or no correlation?

A.

negative correlation

B.

positive correlation

C.

no correlation

 

 

Available solutions