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 the survey?

Question

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 the​ survey?

bobpursley · Answer

Prob(non)=.85^4=.53

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 the​ survey?

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 the survey?