A die is rolled 20 times. find the probability of getting four 2's out of 20 attempts

asked Dec 10, 2017 122k views

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by Kibwe

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5 votes

Maybe divide 20 by 4 and your answer should be 5 times.

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3 votes

P(get 2's) = 1/6
P(not 2's) = 5/6
p= (1/6)^4 * (5/6)^16 = 4.17 * 10^-5

McRobert answered Dec 16, 2017

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