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28-07-2016
Mathematics

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A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at random without replacement. what is the probability that the first marble drawn is red and the second marble is blue?

Respuesta :

29-07-2016

Probability (first marble red and second marble blue) = (3/7) × (4/6) = 2/7

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