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A bag contains three red marbles and eight blue marbles. Your randomly pick a marbles and then pick a second marble without returning the marbles to the bag. What is the probability that the first marble is red and the second marble is blue?

 May 6, 2021
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3 out of 11 are red      First marble red :   3/11

   now there are 10 marbles left of which 8 are blue   Second marble blue :   8/10

 

3/11* 8/10 = 12/55

 May 6, 2021

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