Chebyshev's Theorem states that for any number z greater than 1, the percent of the values that fall within z standard deviations from the mean will be at least (1 - 1 )× 100.
z2

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Quizplus · Accepted Answer

Chebyshev's Theorem indeed states that for any dataset, regardless of its distribution, the proportion of observations that fall within $z$ standard deviations from the mean is at least $1 - \frac{1}{z^2}$ for any $z > 1$. This theorem provides a way to estimate the minimum proportion of data within a certain number of standard deviations from the mean, applicable to any distribution shape.

Chebyshev's Theorem States That for Any Number Z Greater Than