I would like your assistance with the following:(adsbygoogle = window.adsbygoogle || []).push({});

The mean income of a group of sample observations is $500; the standard deviation is $40. According to Chebyshev’s theorem, at least what percent of the incomes will lie between $400 and $600?

Possible answer:

At least 8/9 or 89% of all incomes will fall within 3 standard deviations of the mean

Is this correct...........?

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# Chebyshev's Theorem and income

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