Question

Sandy had test scores of 20 25 17 22 and 21 (out of 25 total). what is her average (mean) score?

Answer 1

To find the mean you add up all the values and divide by how many there are.

So you would do:
20+25+17+22+21 = 105

Then divide:
105/5 (5 values) = 21

Her average score is 21 out of 25.

Hope this helps! :)