document.write( "Question 883834: a bag contain 4 balls , 5 black balls if one ball is drawn from each ball find the probability that (1)both are white(2)both are black(3) one in white and one in black \n" ); document.write( "

Algebra.Com's Answer #533789 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
4 white balls, 5 black balls, 9 balls total.
\n" ); document.write( "With replacement,
\n" ); document.write( " $\"P%28W%2CW%29=%284%2F9%29%284%2F9%29=16%2F81\"$
\n" ); document.write( " $\"P%28B%2CB%29=%285%2F9%29%285%2F9%29=25%2F81\"$
\n" ); document.write( " $\"P%28B%2CW%29=1-P%28W%2CW%29-P%28B%2CB%29=81%2F81-16%2F81-25%2F81=40%2F81\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Without replacement,
\n" ); document.write( " $\"P%28W%2CW%29=%284%2F9%29%283%2F8%29=1%2F6\"$
\n" ); document.write( " $\"P%28B%2CB%29=%285%2F9%29%284%2F8%29=5%2F18\"$
\n" ); document.write( " $\"P%28B%2CW%29=1-1%2F6-5%2F18=18%2F18-3%2F18-5%2F18=10%2F18=5%2F9\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );