Opinion-Polling Organizations Sometimes Contact Their Respondents by Sampling Random Telephone
Opinion-polling organizations sometimes contact their respondents by sampling random telephone numbers.Assume that interviewers can now reach about 77% of Canadian households,while the percentage of those contacted who agree to cooperate with the survey is 32%.Each household,of course,is independent of the others.What is the probability that the next household on the list will be contacted but will refuse to cooperate?
A) 0.177
B) 0.524
C) 0.246
D) 0.074
E) 0.156
Correct Answer:
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