If two natural numbers r and s are drawn one at a time, without replacement from the set S={1,2,3,….n}, then find P`(rlep//slep)` where p`in`S.

If two natural r and s are drawn one at a time, without replacement from the set S = { 1 , 2 , 3 , ….., n} , then find P ( r le p // s le p) where p in S .

Two natural numbers r, s are drawn one at a time, without replacement from the set S = {1, 2, 3, 4, ....., n}. Find P(r le p//s le p) , where p in S.

Two natural numbers r,s and drawn one at a time, without replacement from the set S={1,2,3,………..,n}. Find the P[r le p/s le p] , where p in S .

Three numbers are drawn at random successively without replacement from a set S = {1, 2,…... 10}. Let p be the probability that the minimum of the chosen is 4 or their maximum is 8, then 4p = ______

What is the probability that the sum of two different numbers randomly picked (without replacement) from the set S = {1,2,3,4} is 5 ?

If P(S) denotes the set of all subsets of a given set S, then the number of one-to-one functions from the set S= {1,2,3} to the set P(S) is