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The probability that a student is not a swimmer is 1/5. The probability that out of five students, four are swimmers is (a) 5C4(45)415(b)(45)415(c)5C115(45)4 (d) None of these

Answer»

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

(a) 5C4(45)415(b)(45)415(c)5C115(45)4

(d) None of these



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