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Find the Mean 4 , 14 , 7 , 5 , 13 , 20 , 18

$4$ ,

$14$ ,

$7$ ,

$5$ ,

$13$ ,

$20$ ,

$18$

Step 1

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

$\frac{4 + 14 + 7 + 5 + 13 + 20 + 18}{7}$

Step 2

Simplify the numerator.

Add

$4$ and

$14$ .

$\frac{18 + 7 + 5 + 13 + 20 + 18}{7}$

Add

$18$ and

$7$ .

$\frac{25 + 5 + 13 + 20 + 18}{7}$

Add

$25$ and

$5$ .

$\frac{30 + 13 + 20 + 18}{7}$

Add

$30$ and

$13$ .

$\frac{43 + 20 + 18}{7}$

Add

$43$ and

$20$ .

$\frac{63 + 18}{7}$

Add

$63$ and

$18$ .

$\frac{81}{7}$

Step 3

Divide.

$11.57142857$

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.

$11.6$

Find the Mean 4 , 14 , 7 , 5 , 13 , 20 , 18

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