random variable

noun

Definition of random variable

: a variable that is itself a function of the result of a statistical experiment in which each outcome has a definite probability of occurrence called also variate

Recent Examples of random variable from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'random variable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of random variable

1914

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Learn More about random variable


Seen and Heard

What made you want to look up random variable? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

very hard to disturb or upset

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet-pasta-spelling-help
  • Which is the correct spelling?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!