t distribution

or t-dis·tri·bu·tion.

[ tee dis-truh-byoo-shuhn ]

noun

, Statistics.

1. a bell-shaped probability distribution that is flatter or more stretched out than the normal distribution. bell curve ( def ), normal distribution ( def ).

t distribution

noun

1. See Student's t

Word History and Origins

Origin of t distribution¹

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