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25 July, 10:20

Four people - Roger, Gail, Simon, and Lisa, - enter their names into a drawing. The winner receives a sweater, hat, or scarf. The prize they receive is randomly selected. What is the probability that either: Gail wins and is given a scarf, or Simon wins (and is given any prize) ?

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  1. 25 July, 13:55
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    1/3

    Step-by-step explanation:

    The probability of a student winning is 1/4.

    The probability of a prize being selected is 1/3.

    The probability of Gail winning a scarf is 1/4 * 1/3 = 1/12.

    The probability of Simon winning is 1/4.

    The probability of either is 1/12 + 1/4 = 1/3.
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