Wednesday

March 4, 2015

March 4, 2015

Posted by **Wing** on Tuesday, August 5, 2008 at 11:03pm.

One bad contains 4 white balls and 6 black balls. Another bag contains 8 white balls and 2 black balls. A coin tossed to select a bad, then a ball is randomly selected from that bag.

a. What is the probability that a white ball will be drawn?

b. Suppose a white ball is drawn. What is the probability that it came from the First Bag?

Thanks

THE ANS : A>3/5

B>1/3

But how do you get those?

- ******MATH 12******* -
**Writeacher**, Wednesday, August 6, 2008 at 11:32amhttp://www.jiskha.com/display.cgi?id=1217983092

Use the ideas in Reiny's post; adjust for the numbers you're now posting.

**Answer this Question**

**Related Questions**

MATH 12 HELP! - One bag contains 4 white balls and 6 black balls. Another bag ...

Maths - Bag A contains 2 white, 1 black and 3 red balls, Bag B contains 3 white...

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

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

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

Finite Math - Two balls are drawn from a bag with 4 black balls and 2 white ...

FINITE - selection of colored balls from two bags. Assume that each bag contains...

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