Question

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.)

Answer 1

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.

`\bar{x}=(88+80)/(2)=(168)/(2)=84`

Therefore, the average test score is 84%.