timthaartist
timthaartist
16.12.2020 • 
Mathematics

A bag contains 6 red marbles, 4 black marbles, 10 green marbles, and 2 blue marbles. Marbles are taken at random from the bag, one at a time, and then replaced. Find the probability of drawing a black marble, then drawing a green marble. A 2/11
B 7/11
c 10/121
d 20/231

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