Thursday

November 27, 2014

November 27, 2014

Posted by **Nahla** on Thursday, April 2, 2009 at 9:01pm.

If the ball is either blue or white, what is the probability that it was drawn from urn Y?

Assume that you randomly pick one of the urns: X, Y, or Z. You then randomly draw one ball out of the selected urn and note its color. The urns contain the following colored balls:

Urn X: 2 red, 1 white, and 2 blue.

Urn Y: 1 red, 2 white, and 3 blue.

Urn Z: 1 red, 2 white, and 1 blue.

If the ball is either blue or white, what is the probability that it was drawn from urn Y?

For this problem I did this and I can't figure out why it is wrong:

Pr(drawn from Y urn/is blue) + Pr(drawn from Y urn/ is

white)

(10/23)+(10/31)=540/713

- College Finite Math -
**gabby**, Thursday, June 28, 2012 at 10:59pmThe probability of an event E occurring is 0.8. What are the odds in favor of E occurring?

**Answer this Question**

**Related Questions**

MATH - Urn A contains six white balls and three black balls. Urn B contains ...

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

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 ...

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

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

Math-Probability - Suppose an urn contains 8 red,5 white and 7 blue marbles.If 3...

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

statistics - An Urn contains 7 red and 3 white balls. Two balls are drawn in ...

Math - Suppose an urn contains 8 red,5 white and 7 blue marbles.a.If 3 marbles ...