Expected value is
a. (Probability of state A+Value in state A) (Probability of state B+Value in state B)
b. (Probability of state A*Value in state A)-(Probability of state B*Value in state B)
c. (Probability of state A*Value in state A)+(Probability of state B*Value in state B)
d. (Probability of state A-Value in state A) (Probability of state B-Value in state B)

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)