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23 December, 20:32

Catherine has a number cube that has 6 faces that are numbered from 1 through 6. She plans on rolling the number cube 60 times. About how many times should she expect to roll a number that is greater than 4?

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  1. 23 December, 20:54
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    Greater than 4 means either 5 OR 6, that means the probability of getting 5 or 6 is 2/6 = = >1/3

    Theoretically she needs 3 Rolls to get a number greater than 4
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