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Questions  >>  CBSE XII  >>  Math  >>  Probability
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The probability that a person is not swimmer is 0.3.The probability that out of 5 persons 4 are swimmers is

$\begin{array}{1 1}(A)\;^5C_4(0.7)^4(0.3) & (B)\;^5C_1(0.7)(0.3)^4\\(C)\;^5C_4(0.7)(0.3) & (D)\;(0.7)^4(0.3)\end{array} $

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