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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

(a) `""^5C_(1)(1/5)(4/5)^4`

B

(b) `""^5C_(1)(4/5)(1/5)^4`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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