Question

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

Answer 1

Answer:

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