The sample space is nothing but ALL possible outcomes. In this case you have Black & Red id's. Then the sample space is {black, red}
1.linear pair
2. neither
3. vertical
4. neither
5. vertical
6. neither
7. linear pair
8. neither
Their starting from up to down not side to side
The probability is very high because you need less dimes to make a full dollar other than a nickel you need more
