Student's t distribution

American  

[stood-nts tee dis-truh-byoo-shuhn, styood-nts] / ˈstud nts ˈti dɪs trəˌbyu ʃən, ˈstyud nts /

Also Student t distribution

noun

Statistics.

1. another term for t distribution.

---

Etymology

Origin of Student's t distribution

First recorded in 1925–30; after Student, pseudonym of English statistician William Sealy Gosset (1876–1937); t represents a random variable in the equation describing this type of distribution

Example Sentences

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

From Textbooks • Mar. 27, 2020

As the degrees of freedom decrease, the graph of the Student’s t distribution looks more like the graph of the standard normal distribution.

From Textbooks • Mar. 27, 2020

He therefore created the Student's t distribution as a ratio of the normal distribution and Chi squared distribution.

From Textbooks • Nov. 29, 2017

As the sample size increases, the Student's t distribution become more and more like the normal distribution.

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