19 , 24 , 24 , 17 , 31 , 19 , 11
The mean of a set of numbers is the sum divided by the number of terms.
19+24+24+17+31+19+117
Add 19 and 24.
43+24+17+31+19+117
Add 43 and 24.
67+17+31+19+117
Add 67 and 17.
84+31+19+117
Add 84 and 31.
115+19+117
Add 115 and 19.
134+117
Add 134 and 11.
1457
1457
Divide.
20.71428571
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.
20.7
Find the Mean (Arithmetic) 19 , 24 , 24 , 17 , 31 , 19 , 11