Ryan's Liquor Store orders beer cases several times a year. Based on the past reorder periods, the actual distribution of demand of cases is shown below:
Demand During Lead Time Probability
40 0.1
45 0.2
50 0.4
55 0.2
60 0.1
What is the expected demand during lead time?
a. 55 cases.
b. 50 cases.
c. 45 cases.
d. 40 cases
e. None of the above