Wednesday

August 27, 2014

August 27, 2014

Posted by **osman** on Friday, March 1, 2013 at 8:14am.

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

**Related Questions**

math - There are 9 tennis balls in a box, of which only 5 have not previously ...

statistics - Suppose a box has eight differently colored tennis balls in it. The...

Probability again - A box contains 6 red balls, 4 blue balls, and 2 green balls...

statistics - A box contains 3 white and 5 black balls. Four balls are drawn at ...

math - A toy baseball bat comes with 3 plastic balls in a box that is a ...

Statistics - I have two boxes with balls; box #1 and box #2. Box #1 has 3 red ...

geometry - A box is filled with 6 cans of tennis balls. If the empty space was ...

math - a box filled with identically shaped balls contains 5 balls with the ...

MATH Prob. - A box contains two black balls and three gold balls. Two balls are ...

math - A box contains two black balls and three gold balls. Two balls are ...