Three coins in a fountain. You pay $5 for three coins to toss in a fountain and see how they land. If you see no heads, then you receive $20. If you see exactly one head, then you receive $5 (the game is a draw), and if you see at least two heads, then you lose. What is the expected value of this game? Is there one single possible outcome whereby you would actually gain or lose the exact amount computed for the expected value? If not, why do we call the expected value, the expected value?
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
HEART OF MATHEMATICS
Additional Math Textbook Solutions
Introductory Statistics
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Elementary Statistics: Picturing the World (7th Edition)
Calculus: Early Transcendentals (2nd Edition)
Thinking Mathematically (6th Edition)
A First Course in Probability (10th Edition)
- You toss two six-sided dice. What is the probability that the total of the two dice is 5?arrow_forwarda Suppose that a game gives payouts a1,a2,...,an with probabilities p1,p2,...pn. What is the expected value of this game? b You get 10 if you pick an ace from a deck, and you must pay 2 if you pick any other card. What is your expected value?arrow_forwardDividing a JackpotA game between two players consists of tossing a coin. Player A gets a point if the coin shows heads, and player B gets a point if it shows tails. The first player to get six points wins an 8,000 jackpot. As it happens, the police raid the place when player A has five points and B has three points. After everyone has calmed down, how should the jackpot be divided between the two players? In other words, what is the probability of A winning and that of B winning if the game were to continue? The French Mathematician Pascal and Fermat corresponded about this problem, and both came to the same correct calculations though by very different reasonings. Their friend Roberval disagreed with both of them. He argued that player A has probability 34 of winning, because the game can end in the four ways H, TH, TTH, TTT and in three of these, A wins. Robervals reasoning was wrong. a Continue the game from the point at which it was interrupted, using either a coin or a modeling program. Perform the experiment 80 or more times, and estimate the probability that player A wins. bCalculate the probability that player A wins. Compare with your estimate from part a.arrow_forward
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning