SOLUTION: a fair die is rolled 10 times. compute the probability that a "one" occurs on exactly one of the 10 rolls.
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Question 438669: a fair die is rolled 10 times. compute the probability that a "one" occurs on exactly one of the 10 rolls. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a fair die is rolled 10 times. compute the probability that a "one" occurs on exactly one of the 10 rolls.
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For each roll P(no 1) = 9/10
For each roll P(one 1) = 1/10
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P(x = 1) = 10C1(1/10)^1*(9/10)^9
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P = 10*(1/10)*(9/10)^9 = 0.3874
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Cheers,
Stan H.
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