Asked by Anonymous

A pollster conducts a survey by phone. The probability that a call does not result in a person taking this survey is 85%. What is the probability that the pollster makes 4 calls and none result in a person taking this survey?

11 years ago

Answered by Steve

.85^4

11 years ago

Answered by Anonymous

How do you know to do that operation?

11 years ago

Answered by John

Update ?

10 years ago

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