Answered: If a set of observations is normally…

If a set of observations is normally distributed, what percent of these differ from the mean by (a) more than 2.50? (b) less than 0.640?

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 7E

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Question

If a set of observations is normally distributed, what percent of these differ from the mean by
(a) more than 2.50?
(b) less than 0.640?

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Step 2: Find the percent that differ from the mean by more than 2.5 standard deviations

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Step 3: Find the percent that differ from the mean by less than 0.64 standard deviations

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