Breadcrumb Home > Dictionary > Index P probability theory: Meaning and Definition of Find definitions for: probabil'ity the"ory Pronunciation: [key] — Math., Statistics. Math.,Statistics. the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Cf.(def. 4). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. probability distribution probable TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: recherch Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language