2 containers labeled A and B are filled with red and blue marbles in given quantities: -
Container RED BLUE
A 6 4
B 60 40
Each container is shaken vigorously. After choosing 1 of the container, without looking, draw out a marble. From which container you have the max probability of choosing a blue marble?
Ans. – (a) Container A (6 red, 4 blue)
(b) Container B (60 red, 40 blue)
(c) Equal chances from each container

• If any one choose container A then prob = (1/2)*(4/10)=1/5
  If any one choose container A then prob = (1/2)*(40/100)=1/5
  then option C is correct.
• 11 years agoHelpfull: Yes(4) No(0)
• i think there is no need for 1/2 for equally likely,we candirectly do that by 4c2/10c2=6/10 and 60c2/100c2=6/10
• 11 years agoHelpfull: Yes(3) No(0)
• according to me.....shaking is done which breaks the marble....hence.....the container containing max. number of marble will have more probability.
• 11 years agoHelpfull: Yes(1) No(2)