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28 June, 11:09

Fred and Gina are playing tennis. The first player to win 2 sets wins their match. Fred has a 3/5 chance to win each set while Gina has a 2/5 chance. What is the probability that Fred wins the match?

A. 44/125

B. 63/125

C. 81/125

D. 62/125

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Answers (2)
  1. 28 June, 11:44
    0
    Answer: it's answer c

    Step-by-step explanation:81/125
  2. 28 June, 14:11
    0
    Answer: C. 81/125

    Step-by-step explanation:

    The games is over in 3 sets. For Fred to win the match there are 3 possibilities.

    1) Fred wins the first 2 sets with probability (3/5) ^2

    2) Fred wins the first set. Looses the next set. Wins the third set.

    (3/5) (2/5) (3/5)

    3) Fred looses the first set. Wins the next 2 sets.

    (2/5) (3/5) (3/5)

    The probability that Fred wins is the sum of the above 3 probabilities. That means that the probability that Fred wins the match is

    (3/5) ^2 + (3/5) ^ (2) (2/5) + (3/5) ^ (2) (2/5) = 81/125
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