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3 August, 18:33

The probability that you roll a two on a six-sided die is 16. If you roll the die 60 times, how many twos can you expect to roll?.

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  1. 3 August, 20:02
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    Since this is a binomial p (x=2) = 1/6 then E (x) = np n=60 and p=1/6 so E (x) = 10
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