What is the average of 3.39, 3.32, 2.78, 3.04, 3.07, and 3.13

To find the average of these numbers, add them all up and then divide the sum by the total number of elements in the set.

3.39 + 3.32 + 2.78 + 3.04 + 3.07 + 3.13 = 18.73

There are six numbers in the set, so the average is:
18.73 รท 6 = 3.12

Therefore, the average of 3.39, 3.32, 2.78, 3.04, 3.07, and 3.13 is 3.12.