what is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 7 green marbles, and 11 yellow marbles if one is selected randomly ? Help

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asked Jul 2, 2017 90.0k views

5 votes

what is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 7 green marbles, and 11 yellow marbles if one is selected randomly ? Help

Mathematics
high-school

English Grad asked

by English Grad

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1 Answer

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P(red) = 9/(9 + 7 + 11) = 9/27 = 1/3
P(green) = 7/27

P(red or green) = 1/3 + 7/27 = 16/27

Tyler Montney answered Jul 9, 2017

by Tyler Montney

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