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3 September, 14:05

Find the 80th percentile of the distribution of the average of 49 fly balls.

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  1. 3 September, 14:17
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    Here we need to find 80th percentile for average of 49 fly balls

    i. e. P (Z
    i. e. 0.5+P (0
    P (0
    Using standard normal table we get z=0.8415

    Now z=xbar-mean/se=0.8415

    So xbar=0.8415*7.14+250=256.00831

    Hence 80th percentile is 256
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