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

User Vasily Sochinsky
by
2.6k points

1 Answer

25 votes
25 votes

Answer:

37.94

Explanation:

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

-1.34=(x-50)/9

x=37.94

User Roy
by
3.2k points