document.write( "Question 1096073: Three balls are drawn one after the other without replacement from a bag containing 4 blue,6 white and 5 red identical balls. The probability of picking 2 blue and 1 red ball is \n" ); document.write( "

Algebra.Com's Answer #710546 by rothauserc(4718) $\"\"$ $\"About$

You can put this solution on YOUR website!
suppose the first two picks are blue balls and the third is a red ball, then
\n" ); document.write( ":
\n" ); document.write( "Probability(P) = 4/15 * 3/14 * 5/13 = 0.021978022 approximately 0.02
\n" ); document.write( ":
\n" ); document.write( "Suppose we pick a red ball first and then two blue balls, then
\n" ); document.write( ":
\n" ); document.write( "P = 5/15 * 4/14 * 3/13 = 0.02
\n" ); document.write( ":
\n" ); document.write( "Suppose we pick a blue ball, red ball and then another blue ball
\n" ); document.write( ":
\n" ); document.write( "P = 4/15 * 5/14 * 3/13 = 0.02
\n" ); document.write( ":
\n" ); document.write( "We see that the probability(0.02) is the same for all three cases
\n" ); document.write( ":
\n" ); document.write( " \n" ); document.write( "

\n" );