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22 September, 11:14

If Harriet rolls the number cube 39 times, how many times can she expect to roll a 3 or 4?

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Answers (1)
  1. 22 September, 12:02
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    13 times

    Step-by-step explanation:

    P (3 or 4) = 1/3, so she can expect to roll a 3 or 4 13 times
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