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A bag has 4 green marbles, 3 red, and 2 yellow. What is the probability that you pick a red marble, do not replace it, then pick a yello marble?
 one year ago
 one year ago
Please help! A bag has 4 green marbles, 3 red, and 2 yellow. What is the probability that you pick a red marble, do not replace it, then pick a yello marble?
 one year ago
 one year ago

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BrittanyFrenchBest ResponseYou've already chosen the best response.0
Choices are: 2/15 1/15 1/9 1/10 1/9 Is NOT correct!
 one year ago

Bladerunner1122Best ResponseYou've already chosen the best response.0
If you take out a red and don't replace it then you now have 4 green, 2 red, and 2 yellow. Probability is the part over the whole. So it's 2 yellow/ 8 = 1/4. ... now I'm confused. That's not an answer choice.
 one year ago

BrittanyFrenchBest ResponseYou've already chosen the best response.0
Yeah! Now you can see why i need help lol.
 one year ago

Bladerunner1122Best ResponseYou've already chosen the best response.0
I'm correct about the meaning of probability so I'm not sure.
 one year ago

BrittanyFrenchBest ResponseYou've already chosen the best response.0
Yeah! I have no idea
 one year ago

agent0smithBest ResponseYou've already chosen the best response.1
A bag has 4 green marbles, 3 red, and 2 yellow. What is the probability that you pick a red marble, do not replace it, then pick a yellow marble? First find the total: 9 marbles. There's 3 reds. Chance of picking a red is thus 3/9. Since we don't replace it, there's now only 8 remaining marbles. There are 2 yellow, so the chance of picking a yellow is 2/8. To find the probability of picking a red and then a yellow, multiply those two probabilities together:\[\frac{ 3 }{ 9 } \times \frac{ 2 }{ 8 } = \]
 one year ago

Bladerunner1122Best ResponseYou've already chosen the best response.0
OH!!! That makes sense! xD
 one year ago

Bladerunner1122Best ResponseYou've already chosen the best response.0
It's the probability of doing the two actions in succession. That's why I was wrong.
 one year ago

agent0smithBest ResponseYou've already chosen the best response.1
But that gives 1/12, which also isn't an answer choice... even though I'm pretty sure that's the correct solution.
 one year ago

agent0smithBest ResponseYou've already chosen the best response.1
Unless there's an error in the question
 one year ago
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