litokaJosoannis litokaJosoannis

03-06-2017
Mathematics

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A bag contains one marble which is either green or blue, with equal probabilities. a green marble is put in the bag (so there are 2 marbles now, and then a random marble is taken out. the marble taken out is green. what is the probability that the remaining marble is also green

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Alina6211 Alina6211

03-06-2017

G - green
B - blue

Answer is 2/3

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