Answer:
3
Explanation:
The mean, or average, of a data set can be found by adding all the numbers together, then dividing by the number of values in the set.
1. Add the numbers
The data set is: 1,2,3,4,5
Add all these numbers together
1+2+3+4+5=15
15
2. Divide by the number of values
The data set is: 1,2,3,4,5
There are 5 values in the set.
Divide 15 by 5.
15/5=3
3
The mean, or average of the data set is 3.