The variance can never be a. zero. b. larger than the standard ...

[burchfield96]

The variance can never be
 a. zero.
   b. larger than the standard deviation.
   c. negative.
   d. smaller than the standard deviation.

Question 2

A negative dual price for a constraint in a minimization problem means
 a. as the right-hand side increases, the objective function value will increase.
  b. as the right-hand side decreases, the objective function value will increase.
  c. as the right-hand side increases, the objective function value will decrease.
  d. as the right-hand side decreases, the objective function value will decrease.

[xoxo123]

Answer to Question 1

c

Answer to Question 2

a