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olga_2 [115]
3 years ago
7

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
1 answer:
SVEN [57.7K]3 years ago
3 0
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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