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16 August, 03:26

The spinner at the right is divided into eight equal parts. Find the theoretical probability of landing on the given section (s) of the spinner.

P (not less than 5)

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  1. 16 August, 07:14
    0
    P (not less than 5) = 0.5

    Step-by-step explanation:

    Given

    Parts of spinner = 8 equal parts

    Required

    P (not less than 5)

    First, it'll be assumed that the parts of the spinner is numbered 1 - 8.

    This gives the following sample space (S)

    S = {1,2,3,4,5,6,7,8}

    Total = 8

    To calculate PP (not less than 5), the number of parts not less than 5 is needed.

    Parts not less than 5 = {5,6,7,8}

    Number of parts = 4

    So, P (not less than 5) = Number of parts not less than 5 divided by total number of parts

    Mathematically, P (not less than 5) = 4/8

    P (not less than 5) = 4/8

    P (not less than 5) = ½

    P (not less than 5) = 0.5

    Hence, the theoretical probability of PP (not less than 5) is 0.5.
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