keishasummers keishasummers

13-01-2017
Mathematics

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A bag has 4 green marbles, 3 red marbles, and 3 yellow marbles. What is the probability that you pick a yellow marble, do not replace it, and pick a green marble?

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Moonnose Moonnose

13-01-2017

There is a 3/10 of getting a yellow.
Then there is a 4/9 chance of getting a green afterwards.
3/10 × 4/9
= 12/90
=2/15

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