If the coefficient of determination is 0.975, then the slope of ...

[Pineappleeh]

If the coefficient of determination is 0.975, then the slope of the regression line:
 a. must be positive
  b. must be negative
  c. could be either positive or negative
  d. must be 0
  e. none of these

Question 2

Given the least squares regression line y = -2.48 + 1.63x, and a coefficient of determination of 0.81, the coefficient of correlation is:
 a. -0.85
  b. 0.85
  c. -0.90
  d. 0.90
  e. -0.81

[Heffejeff]

Answer to Question 1

C

Answer to Question 2

D

[Pineappleeh]

Thanks for the timely response, appreciate it

[Joy Chen]

Great answer, keep it coming