Opinion-polling organizations sometimes contact their respondents by sampling random telephone numbers.Assume that interviewers can now reach about 71% of Canadian households,while the percentage of those contacted who agree to cooperate with the survey is 34%.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)0.206
B)0.469
C)0.241
D)0.099
E)0.191

Question

Quizplus · Accepted Answer

The Answer of Opinion-polling organizations sometimes contact their respondents by sampling random telephone numbers.Assume that interviewers can now reach about 71% of Canadian households,while the percentage of those contacted who agree to cooperate with the survey is 34%.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)0.206
B)0.469
C)0.241
D)0.099
E)0.191

Opinion-Polling Organizations Sometimes Contact Their Respondents by Sampling Random Telephone