SOLUTION: two balls are drawn at randum from a bag containing 6 red and 4 green balls. find the probability that the balls drawn are either red or green

Algebra ->  Probability-and-statistics -> SOLUTION: two balls are drawn at randum from a bag containing 6 red and 4 green balls. find the probability that the balls drawn are either red or green      Log On

Hi

10 Balls: 6R, 4G

two balls are drawn at random, w/o replacement

P(both red or green) =  = 42/90 = 21/45