A gallup poll of 1236 adults showed thatâ€‹ 12% of the respondents believe that it is bad luck to walk under a ladder. consider the probability that among 30 randomly selected people from the 1236 who wereâ€‹ polled, there are at least 2 who have that belief. given that the subjects surveyed were selected withoutâ€‹ replacement, the events are not independent. can the probability be found by using the binomial probabilityâ€‹ formula? why or whyâ€‹ not? choose the correct answer below.

a. yes. although the selections are notâ€‹ independent, they can be treated as being independent by applying theâ€‹ 5% guideline.

b. no. the selections are notâ€‹ independent, and theâ€‹ 5% guideline is not met.

c. yes. there are a fixed number of selections that areâ€‹ independent, can be classified into twoâ€‹ categories, and the probability of success remains the same.

d. no. the selections are not independent.

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5 June, 14:32

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Willis · Answer 1

The answer is a) although they are not independent, since they are less than 5% of the population, they can be treated as independent.