SOLUTION: a dice is rolled 5 times what is the probability that exactly 2 fours appears?

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Question 1192388: a dice is rolled 5 times what is the probability that exactly 2 fours appears?
Answer by ikleyn(52803) About Me  (Show Source):
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a dice is rolled 5 times what is the probability that exactly 2 fours appears?
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Binomial distribution n = 5 trials;  k = 2 successful trials;  p = 1%2F6.


    P = C%5B5%5D%5E2%2A%281%2F6%29%5E2%2A%285%2F6%29%5E3 = 10%2A%281%2F6%29%5E2%2A%285%2F6%29%5E3 = 0.160751   (rounded).   ANSWER

Solved.

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To see many other similar  (and different)  solved problems,  look into the lessons
    - Simple and simplest probability problems on Binomial distribution
    - Typical binomial distribution probability problems
in this site.