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The probability that a student is not a ...

The probability that a student is not a swimmer is `1/5`. Then the probability that out of five students, four are swimmers is:

A

`(5_C)_4(4/5)^4 (1/5)`

B

`(4/5)^4 (1/5)`

C

`(5_C)_1(1/5)(4/5)^4`

D

ਇਹਨਾਂ ਵਿੱਚੋਂ ਕੋਈ ਵੀ ਨਹੀਂ

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