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Student's t distribution

noun, Statistics.
1.
a bell-shaped probability distribution that is flatter or more stretched out than the normal distribution.
Also, Student t distribution.
Also called t distribution.
Origin
1925-1930
1925-30; after Student, pseudonym of William Sealy Gosset (1876-1937), English statistician; t represents a random variable in the equation describing this type of distribution
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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