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OpenStudy (ammarah):
You are randomly choosing a marble from a bag. The bag contains 15 black marbles, 6 red marbles, and 6 blue marbles. Find the probability of the given event. 1. choosing a blue marble.
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OpenStudy (ammarah):
@mathstudent55
OpenStudy (ammarah):
i got 2/9 is that correct?
OpenStudy (anonymous):
yes!
OpenStudy (ammarah):
how about for chosing a red or a blue marble
OpenStudy (anonymous):
so there are 27 total marbles. just divide the number of marbles in question by the total number of marbles to get the probability.
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OpenStudy (ammarah):
is it just 12/27
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
you can simplify if you want by dividing out the 3 and you get 4/9
OpenStudy (ammarah):
ok
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