SOLUTION: A jar contains 13 black and 12 red marbles. If one marble is drawn at random, what is the probability that it is black?

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Question 142153: A jar contains 13 black and 12 red marbles. If one marble is drawn at random, what is the probability that it is black?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
13/25
Cheers,
Stan H.