Two subsets A and B of a set containing n elements are chosen at random. The probability that `A sube B` is

If two subsets A and B of set S containing n elements are selected at random, then the probabit AnnB=phi and AuuB=S is

If two subsets A and B of set S containing n elements are selected at random,then the probabit A nn B!=phi and A uu B=S is

The number of subsets of a set containing n elements is

The number of subsets of a set containing n 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