Beautiful mathematics stuff !

Schauspiel Solutions is a technological company which provides solutions to almost any technical problem. Considering the uniqueness of the name, and being headed by a very brilliant CEO, the company gathers a huge deal of publicity, and so the manager, Mr. X is loaded with work. He devices a plan to eectively distribute the work amongst his subordinates, to ensure that the popularity of the company does not get aected. The company consists of n clerks. Mr X decides to select an arbitrary number of clerks and allocate them work proportional to the number of clerks he selects raised to a positive constant . Find the average work allocated by him considering all possibilities. You may consider the proportionality constant to be unity.