About % of the area is between z = -2 and z = 2 (or within 2

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About % of the area is between z = -2 and z = 2 (or within 2 standard deviations of the mean).

Find the indicated area under the curve of the standard normal distribution; then convert it to a percentage and fill in the blank. The results form the basis for the range rule of thumb and the empirical rule introduced in Section 3-2.

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Mathematical Interest Theory

ISBN: 9781470465681

3rd Edition

Authors: Leslie Jane, James Daniel, Federer Vaaler

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