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Mathematics 21 Online
OpenStudy (anonymous):

a bag contains 4 white, 3 blue and 5 red marbles. Find the probability of choosing a red marble, and then a white marble if the marbles where replaced

OpenStudy (anonymous):

So you want to find out what the probability is if there was 4 red marbles and 5 white marbles?

OpenStudy (anonymous):

Add all of the marbles together and then however many marbles of that color is it would be that. Like 4 out of 11 marbles are white.

OpenStudy (anonymous):

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