Question: Statistics: Please show steps: The Denver Post reported that a recent Audit of Los Angeles 911 calls showed that 85% were not emergencies. Suppose the

Statistics: Please show steps:

The Denver Postreported that a recent Audit of Los Angeles 911 calls showed that 85% were not emergencies. Suppose the 911 operators in Los Angeles have just receivedfourcalls.

(a) What is the probability that allfourcalls are, in fact, emergencies? (Round your answer to three decimal places.)

(b) What is the probability thatthreeor more calls are not emergencies? (Round your answer to three decimal places.)

(c) How many callsnwould the 911 operators need to answer to be 96% (or more) sure that at least one call is, in fact, an emergency? (Enter your answer as a whole number.)

calls

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