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A member of the City Council has proposed a resolution opposing construction of

ID: 3262840 • Letter: A

Question

A member of the City Council has proposed a resolution opposing construction of a new state prison there. The council members decide they want to assess public opinion before they vote on this resolution. Below are some of the methods that are proposed to sample local residents to determine the level of public support for the resolution. Match each with one of the listed sampling techniques. ____ Place an announcement in the newspaper asking people to call their council representatives to register their opinions. Council members will tally the calls they receive. 1 cluster 2 convenience 3 multistage 4 simple (SRS) 5 stratified 6 systematic 7 voluntary response _____ Have each council member survey 50 friends, neighbors, or co-workers. ____ Have the Board of Elections assign each voter a number, then select 400 of them using a random number table. _____ Randomly pick 50 voters from each election district. If you flip a fair coin and get heads 5 times in a row, what is the chance of getting tails on the next flip? A. Greater than 50% B. 50% C. Less than 50% The jukebox from hell contains only three songs: Friday, (Simply Having) A Wonderful Christmastime, and Call Me Maybe. If the probability that Friday is playing is Wonderful Christmastime is playing is 1/6 and the probability that (Simply Having) A Wonderful Christmastime is playing is 1/3, what is the probability that Call Me Maybe is playing? a. 1/6 b. 1/3 c.1/2 d. If you pick d, you will be wrong.

Explanation / Answer

29. Voluntary response

30. Convenience sampling

31. Simple random sampling

32. Stratified sampling

33. B) 50%

34. P(call me maybe) = 1 - (1/6) - (1/3)

= 1/2 (C)

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