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Find the Mean 34.5 , 44.5 , 54.5 , 64.5 , 74.5

$34.5$ ,

$44.5$ ,

$54.5$ ,

$64.5$ ,

$74.5$

Step 1

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

$\frac{34.5 + 44.5 + 54.5 + 64.5 + 74.5}{5}$

Step 2

Simplify the numerator.

Add

$34.5$ and

$44.5$ .

$\frac{79 + 54.5 + 64.5 + 74.5}{5}$

Add

$79$ and

$54.5$ .

$\frac{133.5 + 64.5 + 74.5}{5}$

Add

$133.5$ and

$64.5$ .

$\frac{198 + 74.5}{5}$

Add

$198$ and

$74.5$ .

$\frac{272.5}{5}$

Step 3

Divide

$272.5$ by

$5$ .

$54.5$

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.

$54.5$

Find the Mean 34.5 , 44.5 , 54.5 , 64.5 , 74.5

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