Question

scott took five math tests with scores 83, 82, 81, 90, and 99. what is the mean of scotts test scores? 9x9 = 81 a 81

Explanation:

Step1: Recall mean formula

The mean (average) of a set of numbers is $\frac{\text{Sum of numbers}}{\text{Number of numbers}}$.

Step2: Calculate sum of scores

$83 + 82+81 + 90+99=435$.

Step3: Calculate the mean

There are 5 scores. So the mean is $\frac{435}{5}=87$.

Answer:

87