Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun statistics The theorem that in any data sample with finite variance, the probability of any random variable X lying within an arbitrary real k number of
standard deviations of themean is 1 / k2, i.e. assuming mean μ and standard deviation σ, the probability Pr is:
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From surname of Pafnuty Chebyshev, the discoverer.
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