Lemma
EasyNormal distribution
OpenStax, Contemporary Mathematics §8.6 The Normal Distribution · Example 7 · Statistics · Normal distribution

The Normal Distribution · Example 7

Suppose we have data that are normally distributed with mean 47 and standard deviation 9. Find the data values (rounded to the nearest tenth) corresponding to these percentiles:

(a) 75th (that’s the third quartile)
(b) 12th
(c) 90th

~5 minWritten answer · compare with the solution

OpenStax, Contemporary Mathematics · §8.6 The Normal Distribution · Example 7

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