There are 4 white balls and 5 black balls.3 balls are drawn at random.What is probability of odds against all black

• the probability of all black are=5c3/9c3=[(5*4*3)/(3*2*1)]/[(9*8*7)/(1*2*3)]
  =10/84
  so probability of odds against all black are=1-(10/84)=74/84=37/42...
• 11 years agoHelpfull: Yes(6) No(1)