A set of data whose histogram is bell shaped yields a mean and standard deviation of 50

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A set of data whose histogram is bell shaped yields a mean and standard deviation of 50 and 4, respectively. Approximately what proportion of observations
a. Are between 46 and 54?
b. Are between 42 and 58?
c. Are between 38 and 62?

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Statistics For Management And Economics Abbreviated

ISBN: 9781285869643

10th Edition

Authors: Gerald Keller

Question Posted: Feb 03, 2015 07:44 AM

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A set of data whose histogram is bell shaped yields a mean and standard deviation of 50

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