meredith48034 meredith48034

22-05-2018
Health

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A bag contains serveral marbles. Some are red, some are white and some are blue. You count the marbles and find the theoretical probability of choosing a red matble is 2/9. You also find theoretical probability of choosing a white marble is 1/2. How can you find the probability of finding a blue marble?

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0megamasonman 0megamasonman

22-05-2018

2/9 = 4/18
1/2 = 9/18
9/18 + 4/18 = 13/18
18/18 - 13/18 = 5/18

The probability is 5/18

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