Question 212010: Two balls are to be selected without replacement from a bag containing one red, one blue, one green, and one yellow ball. How many points are there in the sample space?
Answer by Edwin McCravy(20060)   (Show Source):
You can put this solution on YOUR website! Two balls are to be selected without replacement from a bag containing one red, one blue, one green, and one yellow ball. How many points are there in the sample space?
4 choose 2
The 6 points in the sample space are these 6
subsets, each containing 2 elements:
1. {red, blue}
2. {red, green}
3. {red, yellow}
4. {blue, green}
5. {blue, yellow}
6. {green, yellow}
Edwin
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