Find the Mean 38.9 , 35.3 , 35.8 , 27.2 , 15.4 , 13.8 , 13 , 9.9 , 10.1 , 8.2

$38.9$ ,

$35.3$ ,

$35.8$ ,

$27.2$ ,

$15.4$ ,

$13.8$ ,

$13$ ,

$9.9$ ,

$10.1$ ,

$8.2$

Step 1

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

$\frac{38.9 + 35.3 + 35.8 + 27.2 + 15.4 + 13.8 + 13 + 9.9 + 10.1 + 8.2}{10}$

Step 2

Simplify the numerator.

Add

$38.9$ and

$35.3$ .

$\frac{74.2 + 35.8 + 27.2 + 15.4 + 13.8 + 13 + 9.9 + 10.1 + 8.2}{10}$

Add

$74.2$ and

$35.8$ .

$\frac{110 + 27.2 + 15.4 + 13.8 + 13 + 9.9 + 10.1 + 8.2}{10}$

Add

$110$ and

$27.2$ .

$\frac{137.2 + 15.4 + 13.8 + 13 + 9.9 + 10.1 + 8.2}{10}$

Add

$137.2$ and

$15.4$ .

$\frac{152.6 + 13.8 + 13 + 9.9 + 10.1 + 8.2}{10}$

Add

$152.6$ and

$13.8$ .

$\frac{166.4 + 13 + 9.9 + 10.1 + 8.2}{10}$

Add

$166.4$ and

$13$ .

$\frac{179.4 + 9.9 + 10.1 + 8.2}{10}$

Add

$179.4$ and

$9.9$ .

$\frac{189.3 + 10.1 + 8.2}{10}$

Add

$189.3$ and

$10.1$ .

$\frac{199.4 + 8.2}{10}$

Add

$199.4$ and

$8.2$ .

$\frac{207.6}{10}$

Step 3

Divide

$207.6$ by

$10$ .

$20.76$

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.

$20.8$

Find the Mean 38.9 , 35.3 , 35.8 , 27.2 , 15.4 , 13.8 , 13 , 9.9 , 10.1 , 8.2

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