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The percentage of customers who enter a restaurant and ask

The percentage of customers who enter a restaurant and ask to be seated in a smoking section is 15%. Suppose that 100 people enter the restaurant.

a. What is the expected number of people who request a smoking table?

b. What is the standard deviation of the number of requests for a smoking table?

c. What is the probability that 20 or more people request a smoking table?

a. What is the expected number of people who request a smoking table?

b. What is the standard deviation of the number of requests for a smoking table?

c. What is the probability that 20 or more people request a smoking table?

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