A linear regression line is assumed to . a. curve slightly ...

[mspears3]

A linear regression line is assumed to .
 
  a. curve slightly upward sat the highest value of X
   b. be a straight line relation throughout the range of X values
  c. curve slightly downward sat the lowest value of X
  d. assume a negative slope near zero if the correlation coefficient is negative

Question 2

If rfor variables X and Y = zero, then the _____ .
 
  a. best prediction of Y is the mean of Y
  b. regression equation will predict Y exactly
  c. mean of X will be higher than the mean of Y
  d. Y-intercept is equal to 1.0

[JaynaD87]

Answer to Question 1

B

Answer to Question 2

A

[mspears3]

Thank you!

[JaynaD87]

Happy to help