Posted by **Lauren** on Wednesday, November 18, 2009 at 9:34pm.

I have a question in my math class in college. Here is the question, but I just need help on HOW to answer it. My text isn't clear at all.

A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession.

a.if there is no replacement, what is the probablity that both balls are black?

b.if there is a replacement before the second draw, what is the probablitity that both balls are black?

My classes are online, and the text is very confusing and the equations for probability all seem to be exactly the same. Please help! Thanks.

## Answer This Question

## Related Questions

- MATH Prob. - A box contains two black balls and three gold balls. Two balls are ...
- math - A box contains two black balls and three gold balls. Two balls are ...
- Math - A box contains 8 white balls, 7 black and 4 red. How many red balls must ...
- statistics - A box contains 3 white and 5 black balls. Four balls are drawn at ...
- Physics - The "karat" is a dimensionless unit that is used to indicate the ...
- elementry math - A box contains three black balls and two gold balls. A ball is...
- Math209 - I am in a college level math class and we have a question that I am ...
- Physics, still don't get it! - The "karat" is a dimensionless unit that is used ...
- statistics - Two urns each contain yellow balls and black balls. Urn 1 contains ...
- Math - my problem is: From the box containing 5 red balls, 7 blue balls, 10 ...

More Related Questions