m3isLoMissala5sky m3isLoMissala5sky

18-01-2017
Mathematics

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You have a bag of 10 marbles. three of them are red, five are blue, and two are green. what is the probability of randomly picking a green or blue marble out of the bag?

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Dynonisius Dynonisius

18-01-2017

probability when picking one is just number of "correct" anwsers devided by the total picking from

2 are green, 5 are blue, so 7 marbles are correct
the chance of picking one correct equals 7/10

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