Answer:
Average score is 4.
Step-by-step explanation:
To find the average: Add up all values and divide by the number of values that there is.
There is a total of 5 values.
Equation:
[tex]\frac{(-7)+(-3)+8+9+13}{5}[/tex]
Add the top portion:
[tex]\frac{20}{5}[/tex]
Divide:
Answer: 4