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If I roll a fair, regular six-sided die four times, what is the probability that I will roll the number  exactly three times?

 Dec 11, 2017
 #1
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Ther probability that any number is rolled  3 times out of 4 is given by :

 

C(4,3)* (1/6)^3 *(5/6)   =  5/324  ≈  1.54%

 

 

cool cool cool

 Dec 12, 2017

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