Question

DaCosta's math quiz scores are 70, 72, 99, 72, and 69. find the mean and median. Which is a better description of DaCosta's typical math quiz score?

Answer 1

mean = 76.4

median = 72

Explanation:

to find the mean (the average) you add all the numbers given together then divide by how many numbers were there

70+72+99+72+69=382

382/5=76.4

to find the median you go from smallest to largest trying to find the middle

69,70,72,72,99

70,72,72

72

i believe that the 72 reflects better on the grades he gets because there is only one grade over a 76 and most of his grades are closer to the 72