Find the Mean 2.1+2.3+1+0.9+1.5+5.6+18.3+18.9+15.1+0.6+0.3+1.8
2.1+2.3+1+0.9+1.5+5.6+18.3+18.9+15.1+0.6+0.3+1.8
Step 1
Add 2.1 and 2.3.
4.4+1+0.9+1.5+5.6+18.3+18.9+15.1+0.6+0.3+1.8
Step 2
Add 4.4 and 1.
5.4+0.9+1.5+5.6+18.3+18.9+15.1+0.6+0.3+1.8
Step 3
Add 5.4 and 0.9.
6.3+1.5+5.6+18.3+18.9+15.1+0.6+0.3+1.8
Step 4
Add 6.3 and 1.5.
7.8+5.6+18.3+18.9+15.1+0.6+0.3+1.8
Step 5
Add 7.8 and 5.6.
13.4+18.3+18.9+15.1+0.6+0.3+1.8
Step 6
Add 13.4 and 18.3.
31.7+18.9+15.1+0.6+0.3+1.8
Step 7
Add 31.7 and 18.9.
50.6+15.1+0.6+0.3+1.8
Step 8
Add 50.6 and 15.1.
65.7+0.6+0.3+1.8
Step 9
Add 65.7 and 0.6.
66.3+0.3+1.8
Step 10
Add 66.3 and 0.3.
66.6+1.8
Step 11
Add 66.6 and 1.8.
68.4
Step 12
The mean of a set of numbers is the sum divided by the number of terms.
68.41
Step 13
Divide68.4 by 1.
68.4
Step 14
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.