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Definition of probability curve - 2 dictionary results

probability curve

–noun Statistics.
1. a curve that describes the distribution of probability over the values of a random variable.
2. normal curve.

Origin:
1890–95

normal curve

–noun Statistics.
a bell-shaped curve showing a particular distribution of probability over the values of a random variable. Also called Gaussian curve, probability curve.

Origin:
1890–95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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