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1 November, 07:35

Carrie rolls 2 fair dice and adds the results from each. Work out the probability of getting a total of 9

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  1. 1 November, 07:48
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    Probability of a sum of 9 = 0.111111

    OR

    Probability of a sum of 9 = 1/9

    Step-by-step explanation:

    Carrie rolls 2 fair dice and adds the results from each.

    The total sample space = 36

    Gotten from 6² = 36

    The probability of getting a total of 9

    Now let's look at the possible sum to give us a 9 (3 and 6, 4 and 5) twice.

    So we gave number of occurrence of 9 to be four.

    Probability of a sum of 9 = 4/36

    Probability of a sum of 9 = 1/9

    Probability of a sum of 9 = 0.111111
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