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Recall: Averaging Two NumbersMaddie earned an 88% on her first test and an 80% onyour second test. What is her average test score? (Note:Click on the little calculator icon above to pull up acalculator.)

Respuesta :

We know that

• She earned an 88% on her first test.

,

• She earned an 80% on her second test.

To know her average score, we just have to sum these percentages and divide them by 2, since they are just 2.

[tex]\bar{x}=\frac{88+80}{2}=\frac{168}{2}=84[/tex]

Therefore, the average test score is 84%.