It has been observed by the Jilian Company over the past 100 weeks that the weekly demand for Product A was 30 units during 25 of these 100 weeks, 35 units during 35 of the past 100 weeks, and 40 units during the remaining 40 weeks. The demand pattern can be expected to remain stable in the future. The company buys the product from another source at a cost of 30 per unit and sells it for 50 each. The product is perishable and unsold units become worthless at the end of the week.

REQUIRED:

1. Compute the probability of the demand for Product A weekly at 30 units, 35 units, and 40 units.

2. Compute the expected value of the weekly demand.