If a set of observations is normally distributed, what percent of these differ from the mean by?

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If a set of observations is normally distributed, what percent of these differ from the mean by?

(a) More than 1.3c?

(b) Less than 0.52cr?

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Probability & Statistics For Engineers & Scientists

ISBN: 9780130415295

7th Edition

Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying

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