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Posted by 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. - , Thursday, August 6, 2009 at 4:30pm

    What is your thinking here?

  • MATH Prob. - , Thursday, August 6, 2009 at 5:03pm

    What do you mean?

  • MATH Prob. - , Thursday, August 6, 2009 at 5:34pm

    I will be happy to critique your thinking, but reluctant to do it for you.

  • MATH Prob. - , 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. - , 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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