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