normal distribution

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normal distribution



(Or "Gaussian distribution") The frequency distribution of many natural phenomena such as the height or intelligence of people of a certain age and sex. The formula looks something like:

P(x) = e^(((x-m)/s)^2)

where P(x) is the probability of a measurement x, m is the mean value of x and s is the standard deviation.

Also known as a "bell curve" because of its shape.

(2003-10-25)