SOLUTION: Probability question Given that we have a probabilty of rain on any given day of 0.2 what is the probability that over the course of the week, it rains on exactly two days?
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Question 678729: Probability question Given that we have a probabilty of rain on any given day of 0.2 what is the probability that over the course of the week, it rains on exactly two days? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Probability question Given that we have a probabilty of rain on any given day of 0.2 what is the probability that over the course of the week, it rains on exactly two days?
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Binomial Problem with n = 7 ; p(rain) = 0.7 ; p(no rain) = 0.3
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P(x = 2) = 7C2*0.7^2*0.3*5 = binompdf(7,0.3,2) = 0.3177
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Cheers,
Stan H.
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