1.5+18 , 0.82
Add 1.5 and 18.
19.5,0.82
The mean of a set of numbers is the sum divided by the number of terms.
19.5+0.822
Add 19.5 and 0.82.
20.322
Divide 20.32 by 2.
10.16
The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.
10.16
Find the Mean (Arithmetic) 1.5+18 , 0.82