18 , 1 , 25 , 18
The mean of a set of numbers is the sum divided by the number of terms.
18+1+25+184
Add 18 and 1.
19+25+184
Add 19 and 25.
44+184
Add 44 and 18.
624
624
Factor 2 out of 62.
2(31)4
Cancel the common factors.
Factor 2 out of 4.
2⋅312⋅2
Cancel the common factor.
2⋅312⋅2
Rewrite the expression.
312
312
312
Divide.
15.5
Find the Mean (Arithmetic) 18 , 1 , 25 , 18