Find the Mean (Arithmetic) 85 , 78 , 77 , 69 , 90

$85$ , $78$ , $77$ , $69$ , $90$

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

$\frac{85 + 78 + 77 + 69 + 90}{5}$

Simplify the numerator.

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Add $85$ and $78$ .

$\frac{163 + 77 + 69 + 90}{5}$

Add $163$ and $77$ .

$\frac{240 + 69 + 90}{5}$

Add $240$ and $69$ .

$\frac{309 + 90}{5}$

Add $309$ and $90$ .

$\frac{399}{5}$

Divide.

$79.8$

Find the Mean (Arithmetic) 85 , 78 , 77 , 69 , 90

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