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OpenStudy (anonymous):
A bag contains 12 green marbles, 18 red marbles, 13 white marbles, and 7 black marbles. What is the probability of drawing a red marble out of the bag? A. B. C. D.
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OpenStudy (kropot72):
\[P(1\ red)=\frac{18}{12+18+13+7}=you\ can\ calculate\]
OpenStudy (anonymous):
Omigosh I didnt notice 7 was there thats why I was getting it wrong
OpenStudy (kropot72):
Glad to hear that you found the slip. :)
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