Suppose a bag contains 7 blue chips and 3 gold chips. What is the probability of randomly choosing a gold chip, not replacing it, and then randomly choosing another gold chip?

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asked Aug 7, 2018 171k views

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Marco Bonelli · Answer 1 · 2018-08-13T03:55:58+0000

The probability would be 1/15.
The first draw, taking a gold coin is 3/10.
Since we don't replace it, we draw again, but a value less- 2/9.
We multiply that together and get 6/90, then simplify it :)

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Suppose a bag contains 7 blue chips and 3 gold chips. What is the probability of randomly choosing a gold chip, not replacing it, and then randomly choosing another gold chip?

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