In a regression problem the following pairs of (x, y) are given: ...

[piesebel]

In a regression problem the following pairs of (x, y) are given: (2,1), (2,-1), (2,0), (2,-2) and (2,2). That indicates that the:
 a. coefficient of correlation is -1.
  b. coefficient of correlation is 0.
  c. coefficient of correlation is 1.
  d. coefficient of determination is between -1 and 1.

Question 2

Given the least squares regression line y = -2.88 + 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is:
 a. -0.88.
  b. +0.88.
  c. +0.90.
  d. -0.90.

[mfedorka]

Answer to Question 1

B

Answer to Question 2

C

[piesebel]

Excellent

[AmberC1996]

Gracias!