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` is `2` b. `3` c. `4` d. none of these

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 is 2 b.3 c.4d .none of these

Column I, Column II If the probability of getting at least one head is at least 0.8 in n trials, then value of n can be, p. 2 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 being one-one is 3/32, then the value of n is, q. 3 If m is selected at random from set {1,2,..., 10} and the probability that the quadratic equation 2x^2+2m x+m+1=0 has real roots is k , then value of 5k is more than, r. 4 A man firing at a distant target as 20% chance of hitting the target in one shoot. If P be the probabililty of hitting the target in "n" attempts , where 20 P^2-13 P+2lt=0, then the ratio of maximum and minimum value of n is less than, s. 5

A mapping is selected at random from all mappings f:A rarr A where set A={1, 2, 3, .... n} If the probability that mapping is injective is 3/32 then the value of n is:

One function is selected at random from all functions of the set S={1,2,3,.......,n} to itself. If, probability that it is one-one is 3/32 , then n 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.

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.