# Find the Mean (Arithmetic) 12 , 15 , 18 , -7 , -4

, , , ,
The mean of a set of numbers is the sum divided by the number of terms.
Simplify the numerator.
Subtract from .
Subtract from .
Divide.
Find the Mean (Arithmetic) 12 , 15 , 18 , -7 , -4

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