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30 March, 09:52

Below are 36 sorted ages of an acting award winner. Find P80.

20, 22, 22, 24, 25, 28, 28, 29, 29, 30, 34, 35, 35, 36, 37, 39, 44, 48, 49, 51, 51, 51, 54, 56, 57, 58, 63, 66, 67, 72, 72, 74, 76, 77, 79, 80

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  1. E
    30 March, 12:41
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    P80 = 36 * 0.80 = 28.8

    The above equation shows that the 80th percentile will have 28.8 values below it. So obtaining the 29th value will be the 80th percentile.

    Looking at the given values, P80 = 67.
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