Question 950198: In a poll conducted by the Pew Research Center in 2003, a national sample of adults answered the following question, "All in all, do you strongly favor, favor, oppose or strongly oppose...making it legal for doctors to give terminally ill patients the means to end their lives?" the results showed that 43% of the sample subjects answered "strongly favor" or "favor" to this question. If 12 subjects represented by this sample are chosen at random, calculate the probability that: exactly two of the respondents answer "strongly favor" or "favor."
a. 0.0442
b. 0.0560
c. 0.1671
d. 0.0106
e. 0.00463
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a poll conducted by the Pew Research Center in 2003, a national sample of adults answered the following question, "All in all, do you strongly favor, favor, oppose or strongly oppose...making it legal for doctors to give terminally ill patients the means to end their lives?" the results showed that 43% of the sample subjects answered "strongly favor" or "favor" to this question. If 12 subjects represented by this sample are chosen at random, calculate the probability that: exactly two of the respondents answer "strongly favor" or "favor."
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Binomial Problem with n = 12 and p(condition) = 0.43
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P(x = 2) = 12C2*0.43^2*0.57^10 = binompdf(12,0.43,2) = 0.04418
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Cheers,
Stan H.
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a. 0.0442
b. 0.0560
c. 0.1671
d. 0.0106
e. 0.00463
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