A bag contains 9 marbles: 2 are green, 3 are red, and 4 are blue. Laura chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is blue and the second is green? Write your answer in simplest form.
2 answers:
5/36 is the answer because (5/9)*(1/4)=5/36
The probability of the first marble being blue is 4/9 and the probability of the second marble being green is 2/8 (8 because the first marble you pulled out didn't get put back, therefore you only have 8 marbles to choose from now) and 2/8 in simplest form is 1/4.
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