Question

What’s the average of those numbers stated below.

86.0
90.0
58.0
87.0
86.7
88.8
72.0
78.3
81.0
78.3
81.7
88.0
81.0

Answer 1

81.3

Explanation:

To calculate the average you have to add up all the numbers then divide them by total numbers.

In this case,

`(86.0 + 90.0 + 58.0 + 87.0 + 86.7 + 88.8 + 72.0 +78.3 + 81.0 + 78.3 + 81.7 + 88.0 + 81.0)/(13)`

`(1056.3)/(13)`

`81.2923076 \\Approximately \\ 81.3`

Answer 2

80

Explanation:

I counted any number that had the tens place 80