Question 822691: A fair die is to be rolled 12 times. What is the probability of getting at most two fives? Found 2 solutions by stanbon, ewatrrr:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A fair die is to be rolled 12 times. What is the probability of getting at most two fives?
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Binomial Problem with n = 12 and p(5) = 1/6
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P(0<= x <=5) = binomcdf(12,1/6,5) = 0.9921
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Cheers,
Stan H.
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Hi,
A fair die is to be rolled 12 times. p(rolling a five) = 1/6 BINOMIAL Distribution P(x) = nCx*
where p and q are the probabilities of success and failure respectively.
In this case p = 1/6 & q = 5/6 & n = 12 nCx =
For ex: P(rolling 12 fives) =
Recommend using Your TI calculator for cumulative probabilities.
and stattrek.com as an excellent reference.
What is the probability of getting at most two fives? binomcdf(12, 1/6, 2)
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