Probability Integral
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Probability Integral
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The classical form (still widely used in engineering work) of the definite
integral of the special normal
distribution for which the mean μ = 0 and standard
deviation σ = 1/2^{1/2}. Geometrically, the probability integral equals
the area under this density curve between -z and z , where z
is an arbitrary positive number. Often denoted by the symbol erf z
(read error function of z ) the probability integral is defined
thus:
Also called error function, erf. [[/a>|/a> ]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use