Find the Mean 0.4 , 0.5 , 0.7 , 0.8 , 1.1 , 0.4 , 0.9 , 1.3

$0.4$ , $0.5$ , $0.7$ , $0.8$ , $1.1$ , $0.4$ , $0.9$ , $1.3$

Step 1

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

$\frac{0.4 + 0.5 + 0.7 + 0.8 + 1.1 + 0.4 + 0.9 + 1.3}{8}$

Step 2

Simplify the numerator.

Add $0.4$ and $0.5$ .

$\frac{0.9 + 0.7 + 0.8 + 1.1 + 0.4 + 0.9 + 1.3}{8}$

Add $0.9$ and $0.7$ .

$\frac{1.6 + 0.8 + 1.1 + 0.4 + 0.9 + 1.3}{8}$

Add $1.6$ and $0.8$ .

$\frac{2.4 + 1.1 + 0.4 + 0.9 + 1.3}{8}$

Add $2.4$ and $1.1$ .

$\frac{3.5 + 0.4 + 0.9 + 1.3}{8}$

Add $3.5$ and $0.4$ .

$\frac{3.9 + 0.9 + 1.3}{8}$

Add $3.9$ and $0.9$ .

$\frac{4.8 + 1.3}{8}$

Add $4.8$ and $1.3$ .

$\frac{6.1}{8}$

Step 3

Divide $6.1$ by $8$ .

$0.7625$

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.

$0.76$

Find the Mean 0.4 , 0.5 , 0.7 , 0.8 , 1.1 , 0.4 , 0.9 , 1.3

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