Question: Apply Chebyshev's rule with k = 3 to verify that at least 89% of the observations in any data set lie within three standard deviations

Apply Chebyshev's rule with k = 3 to verify that at least 89% of the observations in any data set lie within three standard deviations to either side of the mean, that is, between x − 3s and x + 3s.

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