a bag contains 4 red and 8 blue marble. a marble is taken out at random what is the probability of its being blue
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Total marbles are 12
then p(blue marble)=8/12=2/3
then p(blue marble)=8/12=2/3
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probability of it's being blue = 8/(4+8)
= 8/12
= 2/3
= 8/12
= 2/3
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