Find the Mean 34 , 23 , 12 , 11 , 11 , 25 , 25 , 26 , 25 , 27 , 30

$34$ , $23$ , $12$ , $11$ , $11$ , $25$ , $25$ , $26$ , $25$ , $27$ , $30$

Step 1

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

$\frac{34 + 23 + 12 + 11 + 11 + 25 + 25 + 26 + 25 + 27 + 30}{11}$

Step 2

Simplify the numerator.

Add $34$ and $23$ .

$\frac{57 + 12 + 11 + 11 + 25 + 25 + 26 + 25 + 27 + 30}{11}$

Add $57$ and $12$ .

$\frac{69 + 11 + 11 + 25 + 25 + 26 + 25 + 27 + 30}{11}$

Add $69$ and $11$ .

$\frac{80 + 11 + 25 + 25 + 26 + 25 + 27 + 30}{11}$

Add $80$ and $11$ .

$\frac{91 + 25 + 25 + 26 + 25 + 27 + 30}{11}$

Add $91$ and $25$ .

$\frac{116 + 25 + 26 + 25 + 27 + 30}{11}$

Add $116$ and $25$ .

$\frac{141 + 26 + 25 + 27 + 30}{11}$

Add $141$ and $26$ .

$\frac{167 + 25 + 27 + 30}{11}$

Add $167$ and $25$ .

$\frac{192 + 27 + 30}{11}$

Add $192$ and $27$ .

$\frac{219 + 30}{11}$

Add $219$ and $30$ .

$\frac{249}{11}$

Step 3

Divide.

$22.\overline{63}$

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.

$22.6$

Find the Mean 34 , 23 , 12 , 11 , 11 , 25 , 25 , 26 , 25 , 27 , 30

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