1.   What does the expected value of a fair game equal?
    A. zero B. twice the payoff
    C. one D. half the payoff
    Hint

  2.   Based on past sweepstakes a company expects 600,000,000 entries. Find the expected values of Sweepstake B shown in the chart. Round to the nearest ten thousandth.
   
    A. 0.0185 B. 0.0019
    C. 0.0036 D. 0.0142
    Hint

  3.   A school is thinking of selling candy bars as a fundraiser. The company states the probability of making $20,000 is 0.7 and the probability of losing $6500 is 0.37. The company claims that on average any club makes over $10,000. Is this claim accurate? Why or why not?
    A. no; The expected value was over $10,000 B. yes; The expected value was over $10,000
    C. no; The expected value is under $10,000 D. yes; The expected value is under $10,000.
    Hint

  4.   Two children are playing with a bag of four marbles. One is white, 2 are blue and 1is red. Each child takes a marble from the bag. The child with a blue marble receives 2 points. Otherwise the child loses one point. Is the game fair? Why or why not?
    A. yes; The expected value does not equal zero. B. no; The expected value does not equal zero.
    C. yes; The expected value is equal to zero. D. no; The expected value is equal to zero.
    Hint

  5.   Two children are playing with a bag of four marbles. One is white, 2 are blue and 1is red. Each child takes a marble from the bag. The child with a red marble receives 3 points. Otherwise the child loses one point. Is the game fair? Why or why not?
    A. yes; The expected value does not equal zero. B. no; The expected value is equal to zero.
    C. no; The expected value does not equal zero. D. yes; The expected value is equal to zero.
    Hint



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