SOLUTION: A bag contains 8 red marbles, 7 blue marbles, 10 white marbles and 9 yellow marbles. You are asked to draw 5 marbles from the bag without replacement. What is the probability of dr

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Question 449963: A bag contains 8 red marbles, 7 blue marbles, 10 white marbles and 9 yellow marbles. You are asked to draw 5 marbles from the bag without replacement. What is the probability of drawing less than two yellow marbles?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

34 Marbles in all(8-r,7-b,10-w,9-y)

Drawing 5 w/o replacement

P(less than 2 yellow) = P(No yellow) + P(one yellow) 

                      = 27C5/34C5 + 7C1*27C4/34C5

                      =  (80,730 + 7*17,550) /278,256 = 203580/278256 = .7316