# Question

A study of the checkout lines at the Safeway Supermarket in the South Strand area revealed that between 4 and 7 p.m. on weekdays there is an average of four customers waiting in line. What is the probability that you visit Safeway today during this period and find:

a. No customers are waiting?

b. Four customers are waiting?

c. Four or fewer are waiting?

d. Four or more are waiting?

a. No customers are waiting?

b. Four customers are waiting?

c. Four or fewer are waiting?

d. Four or more are waiting?

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