How do I find the mean of these numbers

Answer:
add all of them together (x and y’s) the divide the sum by the amt of numbers
Step-by-step explanation:
Answer:
1. 0
2. -2.5
3. 5
4. -2.5
5. -4
Step-by-step explanation:
Did this by adding the scores together and then dividing by the number of scores added