Author Question: Positive values of covariance indicate a. a positive variance of the x values. b. a positive ... (Read 153 times)

olgavictoria · **on:** Jun 24, 2018

Positive values of covariance indicate
a. a positive variance of the x values.
b. a positive variance of the y values.
c. the standard deviation is positive.
d. positive relation between the independent and the dependent variables.

Question 2

A cost that is incurred no matter what values the decision variables assume is
a. a reduced cost.
b. an optimal cost.
c. a sunk cost.
d. a dual cost.