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5 December, 15:41

Caroline rolls a fair dice 90 times.

How many times would Caroline expect to roll a number greater than 3?

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  1. 5 December, 15:45
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    Answer: 45

    Step-by-step explanation:

    Of the possible numbers (1,2,3,4,5,6), 3 are greater than 3. The probability to roll a number greater than 3 is 3 over the 6 total. That can be simplified to 1/2 for the probability. If she rolls the dice 90 times 90 x 1/2 or 45 rolls will receive a number greater than 3.
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