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Probability
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OpenStudy (anonymous):
Help? A bag contains 7 red marbles, 12 orange marbles, 18 yellow marbles, and 5 purple marbles. A marble is drawn at random from the bag. What is the probability that the marble drawn will not be orange?
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OpenStudy (jadeishere):
so altogether there are 42 marbles. The orange marbles have a chance of 12/42, there is a 30:42 chance it will not be orange. simplify that, and it'd be 15:21
OpenStudy (anonymous):
okay thank you!!!
OpenStudy (jadeishere):
Yep :)
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