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S is a set containing n elements. If two...

S is a set containing n elements. If two subsets A and B of S picked at random from the set of all subset of S. Then the probability that A and B have no common element.

A

`(""^(2n)C_n)/(2^(2n))`

B

`(3/4)^(n)`

C

`(1)/(""^(2n)C_n)`

D

none

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The correct Answer is:
B
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