Question 765218: Suppose in the United States, 60% of murders are committed with a firearm. Suppose 15 murders are randomly selected. Find the probability that between 10 and 12 murders, inclusive, are committed with a firearm.
Hope you can help me set this problem up and solve. Thanks.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Suppose in the United States, 60% of murders are committed with a firearm. Suppose 15 murders are randomly selected. Find the probability that between 10 and 12 murders, inclusive, are committed with a firearm.
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Binomial Problem with n = 15 and p(with gun) = 0.60
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P(10<= x <=12) = binomcdf(15,0.6,12)-binomcdf(15,0.6,9) = 0.3761
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Cheers,
Stan H.
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