Average is computed as follows:
[tex]\text{average}=\frac{total\text{ sum of }all\text{ numbers}}{\text{ number of items}}[/tex]Substituting with the values from the table, we get:
[tex]\text{average score = }\frac{57+62+81+51+66}{5}=\frac{317}{5}=63.4\approx63[/tex]
