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Question

12. Five individual products in a product family of the Cumberland Company have identical sales

patterns. Each averages 100 units per month, with a standard deviation of 10 units. Assuming

normal distributions and independent demands:

a. What is the expected yearly sales distribution of each product?

b. What is the expected monthly aggregate sales distribution for all products together?

c. What is the expected yearly aggregate sales distribution for all products together?

Fig: 1