document.write( "Question 97958: An run contains 8 red, 3 white and 9 blue balls if 3 balls are drawn at random, determine the probability that (a)all 3 are red (b) all 3 are white (c) 2 are red and 1 is blue (d) atleast one is white (e) 1 of each colour is drawn (f) the balls are drawn in the order, red, white, blue.\r
\n" );
document.write( "\n" );
document.write( "thanks \n" );
document.write( "
Algebra.Com's Answer #71262 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! An run contains 8 red, 3 white and 9 blue balls if 3 balls are drawn at random, determine the probability that \n" ); document.write( "(a)all 3 are red...............8C3/20C3 \n" ); document.write( "(b) all 3 are white............3C3/20C3 \n" ); document.write( "(c) 2 are red and 1 is blue....[8C2*9C1]/[20C3] \n" ); document.write( "(d) atleast one is white.......1-[3C3/20C3] \n" ); document.write( "(e) 1 of each colour is drawn..[3!*8*3*9]/20C3 \n" ); document.write( "(f) the balls are drawn in the order, red, white, blue....[8*3*9]/20C3\r \n" ); document.write( "\n" ); document.write( "---------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |