Word Pronunciation & Dictionary

certain event

Word Rarity Uncommon

Frequency: Zipf frequency 4.87 in modern English

Syllables: cer-tain event
IPA

17

Scrabble Score

12

Letters

2

Syllables

8

Unique Chars

Meaning

noun

An event that contains all of the possible outcomes and thus is known a priori to be certain to occur;

noun

An event that contains all of the possible outcomes and thus is known a priori to be certain to occur; (more formally) the entire sample space (which by definition has measure 1 and probability 1); said sample space with the exclusion of, at most, a set of measure 0 (thus retaining measure 1).

Example Sentences

"Measure 0 is assigned to an impossible event, and measure 1 is assigned to a certain (sure) event. A certain event is denoted as #92;Omega; an impossible event, as #92;empty."
"Hence the event A#95;1#92;capA#95;2#92;cap#92;dots#92;capA#95;k will be a certain event too, i.e. P(A#95;1#92;capA#95;2#92;cap#92;dots#92;capA#95;k)#61;1."
"In probability theory, events are sets with a non-negative length that is at most one, since we assume that the sample space #92;Omega is the certain event and should be assigned the largest length, i.e., 1 (probability 100%)."

Inflected Forms

certain events (plural)

Frequently Paired Words

impossible event

Questions

What does certain event mean?: An event that contains all of the possible outcomes and thus is known a priori to be certain to occur;

How to pronounce certain event

Open the pronunciation page — Open the Speakur entry for “certain event”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “certain event”.
Repeat and practice — Say “certain event” aloud, matching stress and vowels until it feels natural.