Question

What’s the average of those numbers stated below.

Answer 1

Answer:

80

Step-by-step explanation:

I counted any number that had the tens place 80

Answer 2

Answer:

81.3

Step-by-step explanation:

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

In this case,

$\frac{86.0 + 90.0 + 58.0 + 87.0 + 86.7 + 88.8 + 72.0 +78.3 + 81.0 + 78.3 + 81.7 + 88.0 + 81.0}{13}$

$\frac{1056.3}{13}$

$81.2923076 \\Approximately \\ 81.3$