Basic Math Examples

$35$ ,

$50$ ,

$60$ ,

$75$ ,

$65$ ,

$80$

Step 1

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

$\frac{35 + 50 + 60 + 60 + 75 + 65 + 80}{7}$

Step 2

Simplify the numerator.

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Step 2.1

Add

$35$ and

$50$ .

$\frac{85 + 60 + 60 + 75 + 65 + 80}{7}$

Step 2.2

Add

$85$ and

$60$ .

$\frac{145 + 60 + 75 + 65 + 80}{7}$

Step 2.3

Add

$145$ and

$60$ .

$\frac{205 + 75 + 65 + 80}{7}$

Step 2.4

Add

$205$ and

$75$ .

$\frac{280 + 65 + 80}{7}$

Step 2.5

Add

$280$ and

$65$ .

$\frac{345 + 80}{7}$

Step 2.6

Add

$345$ and

$80$ .

$\frac{425}{7}$

Step 3

Divide.

$60.71428571$

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.

$60.7$