document.write( "Question 872016: 1. From a bag containing 4 black balls and 5 white balls, two balls are drawn one at a time.(9pts)
\n" ); document.write( "a. Find the probability that both balls are white. Assume that the first ball is returned before the second ball is drawn.
\n" ); document.write( "b. Find the probability of getting 1 black and 1 white in two consecutive draws
\n" ); document.write( "c. Find the probability of getting at least 1 black in 4 consecutive draws.
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #525856 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( "9Balls: 4B, 5W
\n" ); document.write( "Assume that the first ball is returned before the second ball is drawn.
\n" ); document.write( "a) 2draws: P(2W) = \"%285%2F9%29%284%2F9%29\"
\n" ); document.write( "b) 2 consecutive draws(w/o replacement): P(B and W) = \"%284%2F9%29%285%2F8%29\"
\n" ); document.write( "c) 4 consecutive draws(w/o replacement): P(at least 1 B) = 1- P(no B) = 1- \"%285%2F9%29%284%2F8%29%283%2F7%29%282%2F6%29+\" \n" ); document.write( "
\n" );