SOLUTION: A box contains blue and green balls in ratio 3:4.If there are 21 balls in the box and 2 balls are taken one after the other without replacemen.What is the probability that the two
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Question 623169: A box contains blue and green balls in ratio 3:4.If there are 21 balls in the box and 2 balls are taken one after the other without replacemen.What is the probability that the two balls are of the same colours? Answer by ewatrrr(24785) (Show Source):
Hi, Previously Posted
A box contains blue and green balls in ratio 3:4. 21 balls in the box b = and .75g + g = 21,
12 green and and 9 blue, total of 21
2 balls are taken one after the other without replacement
P(2 balls are the same color) = P(both Green) + P(both blue) =
