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a bag has 6 yellow marbles and 6 brown marbles. half of the brown marbles are made of plastic. a marble is selected at random from a bag. what is the probability that is is a brown, plastic marble! write your answer as a fraction is simplest form



Answer :

AL2006

Probability = (number of successful selections) / (total possible selections)

Number of successful selections:  3 (the brown plastic marbles)

Total possible selections:  12  (all the marbles in the bag)

Probability  =  3/12

In simplest form:  1/4 .


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