Algebra Examples

$10$ , $11$ , $4$ , $7$ , $12$ , $11$ , $16$ , $6$ , $9$ , $15$

Step 1

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

$\frac{10 + 11 + 4 + 7 + 12 + 11 + 16 + 6 + 9 + 15}{10}$

Step 2

Simplify the numerator.

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Step 2.1

Add $10$ and $11$ .

$\frac{21 + 4 + 7 + 12 + 11 + 16 + 6 + 9 + 15}{10}$

Step 2.2

Add $21$ and $4$ .

$\frac{25 + 7 + 12 + 11 + 16 + 6 + 9 + 15}{10}$

Step 2.3

Add $25$ and $7$ .

$\frac{32 + 12 + 11 + 16 + 6 + 9 + 15}{10}$

Step 2.4

Add $32$ and $12$ .

$\frac{44 + 11 + 16 + 6 + 9 + 15}{10}$

Step 2.5

Add $44$ and $11$ .

$\frac{55 + 16 + 6 + 9 + 15}{10}$

Step 2.6

Add $55$ and $16$ .

$\frac{71 + 6 + 9 + 15}{10}$

Step 2.7

Add $71$ and $6$ .

$\frac{77 + 9 + 15}{10}$

Step 2.8

Add $77$ and $9$ .

$\frac{86 + 15}{10}$

Step 2.9

Add $86$ and $15$ .

$\frac{101}{10}$

Step 3

Divide.

$10.1$