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
1 answer:
P(red) = 9/(9 + 7 + 11) = 9/27 = 1/3
P(green) = 7/27
P(red or green) = 1/3 + 7/27 = 16/27
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