Find the Average 71 , 78 , 81

$71$ , $78$ , $81$

Step 1

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

$\frac{71 + 78 + 81}{3}$

Step 2

Simplify the numerator.

Add $71$ and $78$ .

$\frac{149 + 81}{3}$

Add $149$ and $81$ .

$\frac{230}{3}$

Step 3

Divide.

$76.\overline{6}$

Step 4

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.

$76.7$

Find the Average 71 , 78 , 81

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