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anonymous
 5 years ago
three jars contain colored balls as follows:
Jar Red White Blue
I 10 1 9
II 2 5 13
III 9 1 10
One jar is chosen at random and a ball is withdrawn. The ball is red. What is the probability that it came from jar I? Round to four decimals
anonymous
 5 years ago
three jars contain colored balls as follows: Jar Red White Blue I 10 1 9 II 2 5 13 III 9 1 10 One jar is chosen at random and a ball is withdrawn. The ball is red. What is the probability that it came from jar I? Round to four decimals

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So there's a \(\frac{1}{3}\) chance that the jar you chose was jar one, and a \(\frac{10}{20}\) chance that you chose a red ball if you the first jar. Now you need to combine these two numbers to get the overall probability you're looking for. Do you know how to combine them?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you do you mean like multiple 1/3 by 10/20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Exactly. Does that make sense?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got an answer of .1667 but when i put it as my answer it says its wrong

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Hm. Odd. Let me think on it.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0There's a chance that what it's looking for isgiven the fact that you already chose a red ball, what are the chances it was in the first jar. In that case, you realize that there are \(21\) ways to get a red ball. \(10\) of those ways are in the first jar, so you can get the probability from there.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so i would multiple 10 times 21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So the probability would be... out of the \(21\) overall chances, how many occur in the first jar. That would be dividing the two.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay now I got it thanks alot
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