Find the Mean -2 , -2 , -1 , 0 , 0 , 1 , 1 , 2 , 3 , 4 , 4 , 4 , 8

$- 2$ , $- 2$ , $- 1$ , $0$ , $0$ , $1$ , $1$ , $2$ , $3$ , $4$ , $4$ , $4$ , $8$

Step 1

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

$\frac{- 2 - 2 - 1 + 0 + 0 + 1 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Step 2

Simplify the numerator.

Subtract $2$ from $- 2$ .

$\frac{- 4 - 1 + 0 + 0 + 1 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Subtract $1$ from $- 4$ .

$\frac{- 5 + 0 + 0 + 1 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 5$ and $0$ .

$\frac{- 5 + 0 + 1 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 5$ and $0$ .

$\frac{- 5 + 1 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 5$ and $1$ .

$\frac{- 4 + 1 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 4$ and $1$ .

$\frac{- 3 + 2 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 3$ and $2$ .

$\frac{- 1 + 3 + 4 + 4 + 4 + 8}{13}$

Add $- 1$ and $3$ .

$\frac{2 + 4 + 4 + 4 + 8}{13}$

Add $2$ and $4$ .

$\frac{6 + 4 + 4 + 8}{13}$

Add $6$ and $4$ .

$\frac{10 + 4 + 8}{13}$

Add $10$ and $4$ .

$\frac{14 + 8}{13}$

Add $14$ and $8$ .

$\frac{22}{13}$

Step 3

Divide.

$1.\overline{692307}$

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.

$1.7$

Find the Mean -2 , -2 , -1 , 0 , 0 , 1 , 1 , 2 , 3 , 4 , 4 , 4 , 8

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