4 ms·
Samples getting 6 standard deviations away from the mean can happen 1/6² ≈ 2.7% of the time. You might be assuming properties of the distribution that aren't t
by Simon_says 7y ago
Samples getting 6 standard deviations away from the mean can happen 1/6² ≈ 2.7% of the time. You might be assuming properties of the distribution that aren't true.
https://en.wikipedia.org/wiki/Chebyshev%27s_inequality https://en.wikipedia.org/wiki/Chebyshev%27s_inequality
- yread 7y agoIsn't that an upper bound? It says that it happens at most 2.7% of the time
- Simon_says 7y agoYea, it's an upper bound. The actual percentage depends on the distribution and can be anywhere from 0-2.7%. The Wikipedia link has more details.