SOLUTION: The probability of winning a certain lottery is 1/54,535. For people who play 949 times, find the standard deviation for the random variable X, the number of wins.
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Question 461817: The probability of winning a certain lottery is 1/54,535. For people who play 949 times, find the standard deviation for the random variable X, the number of wins. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The probability of winning a certain lottery is 1/54,535. For people who play 949 times, find the standard deviation for the random variable X, the number of wins.
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std = sqrt(npq) = sqrt(949*(1/54535)(54534/54535)
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= 0.1319
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Cheers,
Stan H.
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