normal-distribution

normal distribution

noun Statistics.
a theoretical frequency distribution represented by a normal curve.


Origin:
1895–1900

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World English Dictionary
normal distribution
 
n
statistics Also called: Gaussian distribution a continuous distribution of a random variable with its mean, median, and mode equal, the probability density function of which is given by (exp-[(x--μ)²/2σ²]/σ√(2π)) where μ is the mean and σ² the variance

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American Heritage
Science Dictionary
normal distribution   (nôr'məl)  Pronunciation Key 
A theoretical frequency distribution for a set of variable data, usually represented by a bell-shaped curve symmetrical about the mean.
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