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OpenStudy (anonymous):
A bag contains 4 black marbles, 5 red marbles, and 1 blue marble. What is the probability of drawing a black marble or a blue marble from the bag?
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OpenStudy (anonymous):
40 percent
OpenStudy (anonymous):
It is 50% @athenasannabeth
OpenStudy (anonymous):
oh sorry i wasn't paying attention I did't see where it said blue marble
OpenStudy (anonymous):
It is either blue or black marbles so blue marbles + black marbles = 5 red marbles = 5 So it is a 50% chance to roll blue or black
OpenStudy (anonymous):
ik sorry
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