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Find the Mean 7 , 6 , 12 , 18 , 5 , 11

$7$ ,

$6$ ,

$12$ ,

$18$ ,

$5$ ,

$11$

Step 1

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

$\frac{7 + 6 + 12 + 18 + 5 + 11}{6}$

Step 2

Simplify the numerator.

Add

$7$ and

$6$ .

$\frac{13 + 12 + 18 + 5 + 11}{6}$

Add

$13$ and

$12$ .

$\frac{25 + 18 + 5 + 11}{6}$

Add

$25$ and

$18$ .

$\frac{43 + 5 + 11}{6}$

Add

$43$ and

$5$ .

$\frac{48 + 11}{6}$

Add

$48$ and

$11$ .

$\frac{59}{6}$

Step 3

Divide.

$9.8\overline{3}$

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.

$9.8$

Find the Mean 7 , 6 , 12 , 18 , 5 , 11

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