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14 September, 23:55

Suppose that a person won the Florida lottery and was offered a choice of two prizes: (1) sure $500,000 or (2) a coin-toss gamble in which he or she would get $1 million if a head were flipped and zero if a tail. What is the expected dollar return on the gamble?

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  1. 15 September, 00:59
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    for sure expected return = 100 %

    for gamble expected return = 50 %

    Step-by-step explanation:

    given data

    prize 1 = $ 500000

    prize 2 = $1 million if head

    prize 2 = 0 if tail

    to find out

    expected return on the gamble

    solution

    we know that expected return is

    expected return = probability * return ... 1

    so in case of sure

    probability is 1

    and return is 100%

    so from equation 1

    expected return = probability * return

    expected return = 1 * 100% = 100%

    and in case of gamble

    probability = 0.5 because coil head and tail chance is 0.5

    so rate of return 1 = 1 * 0.5 = 50%

    and rate of return 2 = 1 * 100% = 100%

    so return is = (1000000 - 500000) / 500000

    return = 1 = 100%

    so from equation 1

    expected return = probability * return

    expected return = 0.5 * 100 %

    expected return = 50 %
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