Question

The percentage of data values that must be within one, two, and three standard deviations of...

The percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution can be determined using

a)the empirical rule.

b)percentiles.

c)a five-number summary.

d)Chebyshev's theorem.

Homework Answers

Answer #1

Solution:-

=. option a) the empirical rule

Explanation:-

The percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution can be determined using the empirical rule.

The Empirical Rule or 68-95-99.7% Rule gives the approximate percentage of data that fall within one standard deviation (68%), two standard deviations (95%), and three standard deviations (99.7%) of the mean. This rule should be applied only when the data are approximately normal.

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