Use the 95% rule and the fact that the summary statistics come from a distribution that...

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Use the 95% rule and the fact that the summary statistics come from a distribution that...

Use the 95% rule and the fact that the summary statistics come from a distribution that is symmetric and bell-shaped to find an interval that is expected to contain about 95% of the data values. A bell-shaped distribution with mean 13 and standard deviation 2.

math Statistics-And-Probability

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Answer 1

Answer #1

Using the 68 - 95 - 99.7 rule, we can say that 95% of the data values will lie in the interval $(\mu - 2\sigma, \mu + 2\sigma)$ .
Hence, the interval is = (13 - (2 * 2), 13 + (2 * 2)) = (9, 17).

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