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

Multiple Choice

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 39%.Each household,of course,is independent of the others.What is the probability of obtaining an interview with the next household on the sample list?

A) 0.300
B) 0.090
C) 0.770
D) 0.470
E) 0.140