Monday
March 30, 2015

Homework Help: MATH Prob.

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?

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