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 TOPICS This page:   probability    Search   Dr. Math See also the Dr. Math FAQ:   probability and   probability in the   real world Internet Library:   probability HIGH SCHOOL About Math Analysis Algebra    basic algebra    equations/graphs/      translations    linear algebra    linear equations    polynomials Calculus Complex Numbers Calculators/    Computers Definitions Discrete Math    permutations/    combinations Exponents    Logarithms Fibonacci Sequence/   Golden Ratio Fractals Functions Geometry    Euclidean/plane      conic sections/        circles      constructions      coordinate plane      triangles/polygons    higher-dimensional      polyhedra    non-Euclidean    practical geometry    symmetry/tessellations History/Biography Interest Logic Negative Numbers Number Theory Physics/Chemistry Probability Projects Puzzles Sequences/Series Sets Square/Cube Roots Statistics Transcendental   Numbers Trigonometry Browse High School Probability Stars indicate particularly interesting answers or good places to begin browsing. Selected answers to common questions:     Coin tossing.     Odds vs. probability.     Poker probabilities.     Rolling dice. Why Study Sequences and Series? [02/26/1999] What are some applications of arithmetic sequences and series? Winning the Game [09/21/2000] In an equitable game of coin tossing, I have x dollars and my friend has y dollars... What is the probability that my friend will win all of my x dollars before I can win his y dollars? Winning the Lottery [01/30/1997] Can you find a formula that predicts the outcome of the lottery? Working Out Betting Odds [06/27/2001] I am doing a horse racing night in a local pub, and as part of the committee I have been asked to try to find out how to work out the betting odds for each horse... The World Series [10/22/2000] What is the probability of the Yankees and the Mets playing each other in the World Series? Yahtzee Probabilities and a State Matrix [12/30/1998] In Yahtzee, what are the odds of rolling 5 of a kind within 3 rolls of the dice? What if you reroll all 5 dice each time? Does this involve transition matrices? Years That Start on Sunday [10/02/2000] What is the probability that a randomly chosen year will start on a Sunday? Zero Probability vs. Practically Improbable [02/09/2014] An adult has doubts that rare events remain possible, however unlikely. With examples that build off his own, as well as one drawn from a common stock-picking fraud, Doctor George shows how much practical considerations bias our grasp of probability. Page: [

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