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12 March, 08:02

In a group of 30 students, the probability that at most 25 of them like to swim

is 38%. What is the probability that at least 26 of them like to swim?

A - 38

B - 62

C-55

D-44

+3
Answers (1)
  1. 12 March, 08:24
    0
    P (A) = at most 25 of them like to swim

    P (B) = at least 26 of them like to swim

    P (A) + P (B) = 100%

    => P (B) = 100-P (A) = 100-38 = 62%

    => B is correct
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