A mapping is select at random from the set of all the mappings of the set `A={1,2, n}` into itself. Find the probability that the mapping selected is an injection.

A mapping is selected at random from the set of all the mappings of the set A={1,2,...,n} into itself. Find the probability that the mapping selected is an injection.

A mapping is selected at random from the set of all the mappings of the set A={1,2,...,n} into itself. Find the probability that the mapping selected is an injection.

A mapping is selected at random from the set of all the mappings of the set of A= {1,2,3,4,5} into itself. The probability that the mapping selected is a bijection is

A mapping is selected at random from the set of all the mappings of the set of A= {1,2,3,4} into itself. The probability that the mapping selected is a bijection is

36.One mapping /function is selected at random from all the mappings of the set A={1,2,3,4,5) .Into itself.Find the probability that the mapping selected is one to one.

One mapping is selected at random from all mappings of the set S={1,2,3, n} into itself. If the probability that the mapping is one-one is 3/32 , then the value of n