n biscuits are distributed at random among N different beggars, what is the probability that a particular beggar gets exactly r biscuits ?

(i) Twelve balls are distributed at random among three boxes what is the probability that the first box will contain 3 balls ? (ii) If 'n' different biscuits are distributed amoong N beggers, find the chance that a particular begger receives exactly r ( lt n) biscuits.

Ten balls are distributed at random among three boxes. What is the probability that the first box will contain 3 balls?

If n biscuits are distributed among N beggars, find the chance that a particular beggar will get r(

If n biscuits are distributed among N beggars, find the chance that a particular beggar will get r(ltn) biscuits.

If 8 balls are distributed at random among three boxes,what is the probability that the first box would contain 3 balls?

If 4 different biscuits are distributed among 3 children at random, the probability that the first child receives exactly one biscuit is

If 19 biscuits of different types be distributed among 5 children, then find the probability that a particular child will get 6 biscuits.

If ten objects are distributed at random among ten persons, then find the probability that at least one of them will not get any object.