Answer:
17.4
Explanation:
To find the mean of a data set, add all numbers. Then, divide the sum by how many numbers are present.
11 + 14 + 15 + 16 + 16 + 18 + 20 + 20 + 22 + 22 = 174
There are 10 numbers, so divide 174 by 10.
174 / 10 = 17.4
Therefore, 17.4 is the mean of the data set.