**Chebyshev’s Theorem:** For any number *k* greater than 1, at least (1 – 1/k^{2}) of the data values in *any* shaped distribution lie within *k* standard deviations of the mean.

To find the percentage of data values in any shaped distribution that lie within *k* standard deviations of the mean, simply enter a value for *k* below and then click the “Calculate” button.