OpenStax, Contemporary Mathematics §8.6 The Normal Distribution · Example 3 · Statistics · Normal distribution
The Normal Distribution · Example 3
Assume that we have data that are normally distributed with mean 80 and standard deviation 3.
(a) What proportion of the data will be greater than 86?
(b) What proportion of the data will be between 74 and 77?
(c) What proportion of the data will be between 74 and 83?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Contemporary Mathematics · §8.6 The Normal Distribution · Example 3
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