Question: When an opinion poll uses random digit dialing to select respondents for polls, the response rate is approximately (a) What is the mean number of

When an opinion poll uses random digit dialing to select respondents for polls, the response rate is approximately (a) What is the mean number of calls that yield 10% for people contacted by cell phone. You watch a a response? pollster dial 20 cell numbers many times using random O 20 digit dialing. O 22 O 2 O 0.1

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