SOLUTION: A die is rolled 3 times,what is the probability that 3 will appear atleast 2 times

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Question 1191349: A die is rolled 3 times,what is the probability that 3 will appear atleast 2 times
Answer by ikleyn(52817) About Me  (Show Source):
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It is a binomial distribution problem with n = 3 (number of trials);

p = 1%2F6 (the probability of success);

k >= 2 (the number of successful trials).


    P = C%5B3%5D%5E2%2A%281%2F6%29%5E2%2A%285%2F6%29%5E1+%2B+C%5B3%5D%5E3%2A%281%2F6%29%5E3 = 3%2A%281%2F6%29%5E2%2A%285%2F6%29+%2B+%281%2F6%29%5E3 = 0.074074.    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.