Student's t distribution

Etymology
From the pen-name of Irish statistician, which he used for a 1908 paper in , under the pseudonym. The distribution was popularised through the work of, who referred to it as Student's distribution and used the letter t to represent the test value.

Noun

 * 1)  A distribution that arises when the population standard deviation is unknown and has to be estimated from the data.

Usage notes

 * Sometimes referred to as Student's t distribution (a noun phrase with Student's used as determiner).
 * The isolated letter t is often italicised.

Translations

 * Czech: Studentovo t-rozdělení
 * Finnish: t-jakauma,