Monday

March 30, 2015

March 30, 2015

Posted by **Emma** on Friday, March 16, 2012 at 11:58pm.

- Math-Probability -
**Reiny**, Saturday, March 17, 2012 at 8:20amnumber of ways to pick any two = C(7,2) = 21

number of ways with only white = C(3,2) = 3

so the number of ways with at least one red = 21-3 = 18

prob of at least 1 red = 18/21 = 6/7

- Math-Probability -
**rollerpin**, Wednesday, May 22, 2013 at 11:10amwhat does c stand for and how do you get 21?

**Answer this Question**

**Related Questions**

Finite Math - An urn contains six red balls and five white balls. A sample of 2 ...

Finite Math-Probability - Suppose we have an urn with 10 white balls and 6 red ...

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

Strayer University - An urn contains white balls and red balls. If Juan chooses ...

MATH(STATISTICS) - Urn A contains R red balls and W white balls, urn B contains ...

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

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

Math (Probability) - An urn A contains 6 white balls and 7 black balls. And urn ...