Post a New Question


posted by .

There are 9 tennis balls in a box, of which only 5 have not previously
been used. Four of the balls are randomly chosen from the box. Let  be the
number of new balls among the selected ones.
(a) Find the probability distribution of :
(b) Evaluate the expectation E:
(c) Evaluate the variance V ar 

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question