Wednesday

March 4, 2015

March 4, 2015

Posted by **Sam** on Monday, February 28, 2011 at 8:31pm.

- math probability -
**Reiny**, Monday, February 28, 2011 at 9:05pmprob (two are white) = C(4,2)((3/8)^2(5/8)^2

Prob(three are white = C(4,3)(3/8)^3(5/8)

add them up.

**Answer this Question**

**Related Questions**

math - Four balls are selected at random without replacement from an urn ...

probability - Four balls are selected at random without replacement from an urn...

Math - Five balls are selected at random without replacement from an urn ...

math - if a ball is selected at random from an urn containing two red balls, ...

statistics - A jar contains 7 red balls, 5 green balls, 4 blue balls, and 3 ...

Math - A bag contains three black balls, four white balls and five red balls. ...

Math-Probability - An urn contains four red balls and three white balls. A ...

statistics - An urn contains white and red balls. Four balls are randomly drawn ...

statistics - An urn contains white and red balls. Four balls are randomly drawn ...

Finite Math - An urn contains sixteen red balls and seventeen white balls. A ...