Monday

July 28, 2014

July 28, 2014

Posted by **Gina** on Tuesday, October 2, 2012 at 5:25pm.

- Statistics - math -
**Reiny**, Tuesday, October 2, 2012 at 5:40pmcould be 3 red, 3 white

could be 2 red, 4 white

could be 1 red, 5 white

could be all white

prob of those taken in order from top to bottom

= C(6,3) (5/15)(4/14)(3/13)(10/12)(9/11)(8/10)

+ C(6,2) (5/15)(4/14)(10/13)(9/12)(8/11)(7/10)

+ C(6,1) (5/15)(10/14)(9/13)(8/12)(7/11)(6/10)

+ C(6,0) (10/15)(9/14)(8/13)(7/12)(6/11)(5/10)

= .... you do the button pushing

Can you see the pattern ?

- Statistics - math -
**Gina**, Tuesday, October 2, 2012 at 6:25pmThe answer is supposed to be 0.04 + 0.25 + 0.42 + 0.24 = 0.95

However, when I do the math above, I get 0.01 + 0.03 + 0.04 + 0.04 = 0.12.

Where am I making the error in calculating this?

**Related Questions**

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

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

Statistic - A urn contains 21 red balls, 14 white balls If we randomly select 2 ...

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

MATH - An urn contains 8 pink and 7 red balls. 6 balls are randomly drawn from ...

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

statistics - Two urns each contain yellow balls and black balls. Urn 1 contains ...

math - A box contains 6 red balls, 4 white balls, and 5 green balls. If three ...