Let `X = {1,2,-, 10}`, if set A and B are formed from elements of X the probability that `n (Ann B)=2`,is

Let x be set containing 10 elements and p(x) be its power set.If A and B are picked up at random from p(x),with replacement,then probability that A and B have equal number of elements,is

Let X be a set containing n elements.Two subsets A and B of X are chosen at random, the probability that A uu B=X is

Let X be a set containing n elements. Two subsets A and B of X are chosen at random, the probability that AuuB=X is

Let X be a set containing n elements. Two subsets A and B of X are chosen at random, the probability that AuuB=X is

Let X be a set containing n elements. Two subsets A and B of X are chosen at random, the probability that AuuB=X is

Let X be a set containing n elements. Two subsets A and B of X are chosen at random, the probability that AuuB=X is

A set "A" contains 'm' elements another set "B" contains 'n' elements. A relation is formed from A to B. Then the probability that the relation is a function is