Mark the correct alternative in the following:

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


Given:


n=5


q=0.3


P(x=4)=?


P=1-0.3=0.7


P(x=r)= nCr pr qn-r


P(x=4)= 5C4 p4 q


=5C4 (0.7)4 (0.3)

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