The owner of a small convenience store is trying to decidewhether to discontinue selling magazines. He suspects that only 5%of the customers buy magazines and thinks that he might be able tosell something more profitable. Before making a final decision, hekeeps track of the number of customers who buy magazines on a givenday.
a. On one day, he had 280 customers. Assuming this day wastypical, what would be the mean and standard deviation of thenumber of customers who buy magazines each day?
b. What is the probability that less than 10 people will buy amagazine that day?
c. What is the probability that more than 20 people will buy amagazine that day?
The owner of a small convenience store is trying to decide whether to discontinue selling magazines. He suspects that on
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answerhappygod
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