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21 April, 13:20

Find P (not a 3). X 1 2 3 4P (X) 0.30 0.40 0.15 0.15

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  1. 21 April, 16:25
    0
    From the table,

    P (selecting a 3) = 0.15

    which means that,

    P (not a 3) = 1 - P (selecting a 3)

    P (not a 3) = 1 - 0.15

    P (not a 3) = 0.85

    Answer is 0.85
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