randomness

random +‎ -ness

• IPA^(key): /ˈɹændəmnəs/

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randomness (usually uncountable, plural randomnesses)

1. The property of all possible outcomes being equally likely.
2. (mathematics) A type of circumstance or event that is described by a probability distribution.
3. A measure of the lack of purpose, logic, or objectivity of an event.

   There was no randomness in the teacher's selection of the class representative.

   • 2023 June 14, Philip Haigh, “Landslips: NR strives to turn back the tide”, in RAIL, number 985, page 35:

     " […] We were seeing a randomness about failures that was very hard to manage, but with a better understanding we're able to prioritise more effectively."

• random
• at random