Posted by **Twg** on Thursday, August 6, 2009 at 4:22pm.

A box contains two black balls and three gold balls. Two

balls are randomly drawn in succession from the box.

a. If there is no replacement, what is the probability

that both balls are black?

b. If there is replacement before the second draw, what

is the probability that both balls are black?

- MATH Prob. -
**bobpursley**, Thursday, August 6, 2009 at 4:30pm
What is your thinking here?

- MATH Prob. -
**Twg**, Thursday, August 6, 2009 at 5:03pm
What do you mean?

- MATH Prob. -
**bobpursley**, Thursday, August 6, 2009 at 5:34pm
I will be happy to critique your thinking, but reluctant to do it for you.

- MATH Prob. -
**Twg**, Friday, August 7, 2009 at 12:20am
I am not understanding this at all!!! I have read over my material for this class & I still don't get it!! Can someone PLEASE help me?!!!!?????

- MATH Prob. -
**help**, Monday, August 17, 2009 at 9:17pm
Look into the text book and search for pobability in box array. create one and then give the answers

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