document.write( "Question 667908: A box contains 7 red balls and 3 black balls. Two balls are drawn. What is the probability of drawing:\r
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\n" ); document.write( "\n" ); document.write( "(b)a black ball on each draw, if the first ball drawn is black (assuming there is no replacement) \n" ); document.write( "

Algebra.Com's Answer #415253 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "A box contains balls: 7 red balls and 3 black balls. 
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document.write( "Two balls are drawn.
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document.write( "with replacement
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document.write( "P(red than black) = 
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document.write( "without replacement
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document.write( "P(black than black) =  \n" );
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