SOLUTION: The probability that any one of the 31 days in December is rainy is 0.2. What is the probability that December has exactly ten rainy days?

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Question 1149905: The probability that any one of the 31 days in December is rainy is 0.2. What is the probability that December has exactly ten rainy days?
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
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    P = P(31,10,0.2) = C%5B31%5D%5E10%2A0.2%5E10%2A0.8%5E21.


Binomial distribution probability density function.


31 is the number of days in December.