Marvin completed 8 rounds of a trivia game. the scores he earned for each round are shown in the table: what was his average score?

To find out the average score, all we need to do is to add all the scores and then divide the result by the amount of numbers we added. So in this situation it'll look like this:

(10.2 + 11.4 + 10.5 + 12.6 + 12.2 + 11.6 + 13.1 + 12.8) ÷ 8 =
= 94.4 ÷ 8 =
= 11.8

Marvin's average score was 11.8.

/-/////////looks tough ‍♂️