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Chebyshev's Theorem states that for any set of numbers, the fraction that will lie within k standard deviations of the mean is at 1 least

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Chebyshev's Theorem states that for any set of numbers, the fraction that will lie within k standard deviations of the mean is at 1 least 1 - Use this theorem to find the fraction of all the numbers of a data set that must lie within 2 standard deviations from the mean

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