18 , 10 , 17 , 16 , 5
The mean of a set of numbers is the sum divided by the number of terms.
18+10+17+16+55
Add 18 and 10.
28+17+16+55
Add 28 and 17.
45+16+55
Add 45 and 16.
61+55
Add 61 and 5.
665
665
Divide.
13.2
Find the Mean (Arithmetic) 18 , 10 , 17 , 16 , 5