Find the Mean (Arithmetic) 128 , 131 , 138 , 120 , 132 , 120 , 128 , 127

$128$ , $131$ , $138$ , $120$ , $132$ , $120$ , $128$ , $127$

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{128 + 131 + 138 + 120 + 132 + 120 + 128 + 127}{8}$

Simplify the numerator.

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Add $128$ and $131$ .

$\frac{259 + 138 + 120 + 132 + 120 + 128 + 127}{8}$

Add $259$ and $138$ .

$\frac{397 + 120 + 132 + 120 + 128 + 127}{8}$

Add $397$ and $120$ .

$\frac{517 + 132 + 120 + 128 + 127}{8}$

Add $517$ and $132$ .

$\frac{649 + 120 + 128 + 127}{8}$

Add $649$ and $120$ .

$\frac{769 + 128 + 127}{8}$

Add $769$ and $128$ .

$\frac{897 + 127}{8}$

Add $897$ and $127$ .

$\frac{1024}{8}$

Divide $1024$ by $8$ .

$128$

Find the Mean (Arithmetic) 128 , 131 , 138 , 120 , 132 , 120 , 128 , 127

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