Find the Mean 12*11 , 5/12

$12 \cdot 11$ ,

$\frac{5}{12}$

Step 1

Multiply

$12$ by

$11$ .

$132, \frac{5}{12}$

Step 2

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

$\frac{132 + \frac{5}{12}}{2}$

Step 3

Simplify the numerator.

To write

$132$ as a fraction with a common denominator, multiply by

$\frac{12}{12}$ .

$\frac{132 \cdot \frac{12}{12} + \frac{5}{12}}{2}$

Combine

$132$ and

$\frac{12}{12}$ .

$\frac{\frac{132 \cdot 12}{12} + \frac{5}{12}}{2}$

Combine the numerators over the common denominator.

$\frac{\frac{132 \cdot 12 + 5}{12}}{2}$

Simplify the numerator.

Multiply

$132$ by

$12$ .

$\frac{\frac{1584 + 5}{12}}{2}$

Add

$1584$ and

$5$ .

$\frac{\frac{1589}{12}}{2}$

Step 4

Multiply the numerator by the reciprocal of the denominator.

$\frac{1589}{12} \cdot \frac{1}{2}$

Step 5

Multiply

$\frac{1589}{12} \cdot \frac{1}{2}$ .

Multiply

$\frac{1589}{12}$ by

$\frac{1}{2}$ .

$\frac{1589}{12 \cdot 2}$

Multiply

$12$ by

$2$ .

$\frac{1589}{24}$

Step 6

Divide.

$66.208\overline{3}$

Step 7

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.

$66.2$

Find the Mean 12*11 , 5/12

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