random number

noun — 4 senses

random number

noun

US /ˈɹæn.dəm ˈnʌm.bɚ/

1

Used other than figuratively or idiomatically: see random, number.

2

A number allotted randomly using suitable generator (electronic machine or as simple "generator" as die).

3

A number selected based on a uniform distribution, typically using a suitable generator (for example, rolling a die).

  • 1975, Gregory Chaitin, "Randomness and Mathematical Proof", Scientific American, (232), May 1975, pp. 47–52, reprinted in Information, Randomness & Incompleteness: Papers on Algorithmic Information Theory Tossing a coin is a classical procedure for producing a random number .... Tossing a coin 20 times can produce any one of 2²⁰ ... binary series, and each of them has exactly the same probability.
  • A random number is a precisely defined mathematical concept in which every number should have an equal likeliness of occurrence....1998, Stuart Mealing, The Art and Science of Computer Animation, Intellect Books, page 208:
1 more example
  • To randomize the selection process, a random number from 1 to 50 should be used ... This could be done, for example, by using the last two digits of the serial number on a dollar bill. If those digits were 87, subtract 50, leaving 37.2009, Larry Rittenberg, Karla Johnstone, Audrey Gramling, Auditing: A Business Risk Approach, Cengage Learning, page 362:
4

A pseudorandom number.

  • The generation of random numbers is too important to be left to chance.1970, Robert Coveyou (attributed)
Derived terms
random number generator, pseudorandom number

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.