This Question: 2 pts 13 of 20 (18 complete) This Quiz: 25 pts possible The table

Question

This Question: 2 pts 13 of 20 (18 complete) This Quiz: 25 pts possible The table below summarizes results from a study of people who refused to answer survey questions. If one of the subjects is randomly selected, what is the probability that the selected person refused to answer? Does the probability value suggest that refusals are a problerm for pollisters? 30-39 50-59 60 and over Responded 12 10 254 19 32 25 34 56 The probability that a randomly selected person refused to answer ls Do not round unbil the final answer. Then round to three decimal places as needed) Does the probability value suggest that refusals are a problem for pollsters? O A. No, the refusal rate is below 10%. The sample wil ikely be representative of the population. O B. No, the refusal rate is below 10%. This ensures that a suitable number of people were sampled ? ?. Yes, the refusal rate is above 10%. This results in sample size tat is too small to be useful D. Yes, the refusal rate is above 10% This may suggest that the sample may not be representative of the population h E

Explanation / Answer

Solution:

The probability is

(10+19+32+25+34+56)/(72+254+244+135+137+201+10+19+32+25+34+56) = 0.144

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Answer: D
Yes, the refusal rate is above 10%. This may suggest that the same may not be representative of the population.

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