1.

The probability that a person is not a swimmer is 0.3. The probability that out of 5 persons 4 are swimmers is .........

Answer»

`""^(5)C_(4)(0.7)^(4) (0.3)`
`""^(5)C_(1)(0.7)(0.3)^(4)`
`""^(5)C_(4)(0.7)(0.3)^(4)`
`(0.7)^(4)(0.3)`

ANSWER :A


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