Answer:
10.67
Step-by-step explanation:
First you have to add all of the numbers together.
16+17+4+12+4+4+2+17+20=96
Then divide that number by how many values are in the set. In this case, there are 9.
16,17,4,12,4,4,2,17,20
↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑
1 2 3 4 5 6 7 8 9
96/9=10.67
