# Find the Mean (Arithmetic) 18 , 16 , 15 , 9 , 12 , 23

18 , 16 , 15 , 9 , 12 , 23
The mean of a set of numbers is the sum divided by the number of terms.
18+16+15+9+12+236
Simplify the numerator.
34+15+9+12+236
49+9+12+236
58+12+236
70+236
936
936
Cancel the common factor of 93 and 6.
Factor 3 out of 93.
3(31)6
Cancel the common factors.
Factor 3 out of 6.
3⋅313⋅2
Cancel the common factor.
3⋅313⋅2
Rewrite the expression.
312
312
312
Divide.
15.5
Find the Mean (Arithmetic) 18 , 16 , 15 , 9 , 12 , 23

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