t distribution

American

[tee dis-truh-byoo-shuhn] / ˈti dɪs trəˌbju ʃən /

Or t-distribution

noun

Statistics.

a bell-shaped probability distribution that is flatter or more stretched out than the normal distribution.

t distribution British

noun

See Student's t

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of t distribution

First recorded in 1955–60; see origin at Student's t distribution

Example Sentences

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t distribution

Compare the standard normal distribution to the Student’s t distribution, centered at zero.

From Textbooks ● Mar. 27, 2020

You use the t distribution because you do not know the population standard deviation, and the degrees of freedom are 24 because df = n – 1.

From Textbooks ● Mar. 27, 2020

The critical value of the t distribution is 2.764 with 10 degrees of freedom.

From Textbooks ● Nov. 29, 2017

The Student's t distribution has one of the most desirable properties of the normal: it is symmetrical.

From Textbooks ● Nov. 29, 2017

This relationship between the Student's t distribution and the normal distribution is shown in Figure 8.8.

From Textbooks ● Nov. 29, 2017

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023