OpenStax, Introductory Statistics 2e §6.2 Using the Normal Distribution · Example 3 · Statistics · Normal distribution
Using the Normal Distribution · Example 3
c. Find the 90^th percentile (that is, find the score k that has 90% of the scores below k and 10% of the scores above k).
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §6.2 Using the Normal Distribution · Example 3
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