Find the Mean 0.9 , 1 , 1.2 , 1.3 , 1.3 , 1.6 , 0.9 , 1.4 , 1.8

$0.9$ ,

$1$ ,

$1.2$ ,

$1.3$ ,

$1.6$ ,

$0.9$ ,

$1.4$ ,

$1.8$

Step 1

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

$\frac{0.9 + 1 + 1.2 + 1.3 + 1.3 + 1.6 + 0.9 + 1.4 + 1.8}{9}$

Step 2

Simplify the numerator.

Add

$0.9$ and

$1$ .

$\frac{1.9 + 1.2 + 1.3 + 1.3 + 1.6 + 0.9 + 1.4 + 1.8}{9}$

Add

$1.9$ and

$1.2$ .

$\frac{3.1 + 1.3 + 1.3 + 1.6 + 0.9 + 1.4 + 1.8}{9}$

Add

$3.1$ and

$1.3$ .

$\frac{4.4 + 1.3 + 1.6 + 0.9 + 1.4 + 1.8}{9}$

Add

$4.4$ and

$1.3$ .

$\frac{5.7 + 1.6 + 0.9 + 1.4 + 1.8}{9}$

Add

$5.7$ and

$1.6$ .

$\frac{7.3 + 0.9 + 1.4 + 1.8}{9}$

Add

$7.3$ and

$0.9$ .

$\frac{8.2 + 1.4 + 1.8}{9}$

Add

$8.2$ and

$1.4$ .

$\frac{9.6 + 1.8}{9}$

Add

$9.6$ and

$1.8$ .

$\frac{11.4}{9}$

Step 3

Divide

$11.4$ by

$9$ .

$1.2\overline{6}$

Step 4

Divide.

$1.2\overline{6}$

Step 5

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.

$1.3$

Find the Mean 0.9 , 1 , 1.2 , 1.3 , 1.3 , 1.6 , 0.9 , 1.4 , 1.8

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