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A bag has 2 yellow, 7 red, and 1 green marble. What is the probability of picking a green marble, replacing it, and then picking a yellow marble?
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A bag has 2 yellow, 7 red, and 1 green marble. What is the probability of picking a green marble, replacing it, and then picking a yellow marble?
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Mar 11, 2018
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A bag has 2 yellow, 7 red, and 1 green marble. What is the probability of picking a green marble, replacing it, and then picking a yellow marble?
Mathematics
high-school
Xun Yang
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Xun Yang
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you will have one out of 10
Cibele
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Mar 12, 2018
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Cibele
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2 yellow marbles, 7 red marbles, 1 green marble.....total of 10 marbles
probability of picking a green marble : 1/10
replacing marble
probability of picking a yellow marble : 2/10 reduces to 1/5
probability of both events happening : 1/10 * 1/5 = 1/50 <==
Tadashi
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Mar 15, 2018
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Tadashi
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