If an independent variable is added to a multiple regression ...

[B]

If an independent variable is added to a multiple regression model, the R2 value
 a. becomes larger or smaller depending on the statistical significance of the variable.
  b. becomes larger even if the variable added is not statistically significant.
 c. might or might not become larger even if the variable added is statistically significant.
  d. is not affected by the variable added even if it is statistically significant.

Question 2

If several frequency distributions are constructed from the same data set, the distribution with the widest class width will have the _____.
 a. fewest classes
  b. most classes
  c. same number of classes as the other distributions since all are constructed from the same data
  d. None of the answers is correct.

[trampas]

Answer to Question 1

b

Answer to Question 2

a

[B]

Excellent

[ecabral0]

Gracias!