Assume the random variable X is normally​ distributed, with mean of 50 and a standard deviation of 9. Find the 9th percentile.

Question

Assume the random variable X is normally​ distributed, with mean of 50 and a standard deviation of 9. Find the 9th percentile.

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Thiên Hương 2 months 2021-07-30T02:20:27+00:00 1 Answers 2 views 0

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    2021-07-30T02:22:06+00:00

    Answer:

    37.94

    Step-by-step explanation:

    the 9th percentile is equal to a zscore of -1.34

    -1.34=(x-50)/9

    x=37.94

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