Find the Mean (Arithmetic) -10 , 5 , -3 , -15 , 10 , -2 , 12

Math
-10 , 5 , -3 , -15 , 10 , -2 , 12
The mean of a set of numbers is the sum divided by the number of terms.
-10+5-3-15+10-2+127
Simplify the numerator.
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Add -10 and 5.
-5-3-15+10-2+127
Subtract 3 from -5.
-8-15+10-2+127
Subtract 15 from -8.
-23+10-2+127
Add -23 and 10.
-13-2+127
Subtract 2 from -13.
-15+127
Add -15 and 12.
-37
-37
Move the negative in front of the fraction.
-37
Divide.
-0.428571‾
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.
-0.4
Find the Mean (Arithmetic) -10 , 5 , -3 , -15 , 10 , -2 , 12

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