Find the Mean 34 , 56 , 22 , 49 , 37 , 20 , 61 , 48 , 22

$34$ , $56$ , $22$ , $49$ , $37$ , $20$ , $61$ , $48$ , $22$

Step 1

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

$\frac{34 + 56 + 22 + 49 + 37 + 20 + 61 + 48 + 22}{9}$

Step 2

Simplify the numerator.

Add $34$ and $56$ .

$\frac{90 + 22 + 49 + 37 + 20 + 61 + 48 + 22}{9}$

Add $90$ and $22$ .

$\frac{112 + 49 + 37 + 20 + 61 + 48 + 22}{9}$

Add $112$ and $49$ .

$\frac{161 + 37 + 20 + 61 + 48 + 22}{9}$

Add $161$ and $37$ .

$\frac{198 + 20 + 61 + 48 + 22}{9}$

Add $198$ and $20$ .

$\frac{218 + 61 + 48 + 22}{9}$

Add $218$ and $61$ .

$\frac{279 + 48 + 22}{9}$

Add $279$ and $48$ .

$\frac{327 + 22}{9}$

Add $327$ and $22$ .

$\frac{349}{9}$

Step 3

Divide.

$38.\overline{7}$

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.

$38.8$

Find the Mean 34 , 56 , 22 , 49 , 37 , 20 , 61 , 48 , 22

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