Given the least squares regression line = -4.63 + 1.38x, and a ...

[humphriesbr@me.com]

Given the least squares regression line = -4.63 + 1.38x, and a coefficient of determination of 0.9025, the correlation coefficient must be:
 a. -0.95
  b. +0.95
  c. +1.38
  d. -0.81
  e. 0.81

Question 2

The following are coefficients of correlation (r). The one that indicates a strong positive linear relationship between the two variables of interest is:
 a. 0.8
  b. -0.9
  c. 0.9
  d. -1.3
  e. -1

[mcarey591]

Answer to Question 1

B

Answer to Question 2

C