313

A mixed number is an addition of its whole and fractional parts.

3+13

Add 3 and 13.

To write 3 as a fraction with a common denominator, multiply by 33.

3⋅33+13

Combine 3 and 33.

3⋅33+13

Combine the numerators over the common denominator.

3⋅3+13

Simplify the numerator.

Multiply 3 by 3.

9+13

Add 9 and 1.

103

103

103

103

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

1031

Divide 103 by 1.

103

Divide.

3.3‾

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.

3.3

Find the Mean (Arithmetic) 3 1/3