SOLUTION: A jar contains 3 red, 4 blue, and 5 white marbles. What is the probability of drawing a red or a white marble?

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Question 670178: A jar contains 3 red, 4 blue, and 5 white marbles. What is the probability of drawing a red or a white marble?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

A jar contains12marbles: 3 red, 4 blue, and 5 white marbles

P(red or white) = 3%2F12+%2B+5%2F12+=+8%2F12+=+2%2F3