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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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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?

User AlexLarra
by
9.6k points

2 Answers

7 votes

Answer:1/15

Explanation:

User Hassan Mahmood
by
8.7k points
3 votes
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 :)
User Marco Bonelli
by
7.5k points
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