OpenStax, Introductory Statistics 2e §6.1 The Standard Normal Distribution · Exercise 32 · Statistics · Normal distribution
The Standard Normal Distribution · Exercise 32
About what percent of the x values from a normal distribution lie within two standard deviations (left and right) of the mean of that distribution?
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OpenStax, Introductory Statistics 2e · §6.1 The Standard Normal Distribution · Exercise 32
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