The mean of a set of numbers is the sum divided by the number of terms.
72+7612
Step 3
Simplify the numerator.
To write 761 as a fraction with a common denominator, multiply by 22.
72+761⋅222
Combine761 and 22.
72+761⋅222
Combine the numerators over the common denominator.
7+761⋅222
Simplify the numerator.
Multiply761 by 2.
7+152222
Add 7 and 1522.
152922
152922
152922
Step 4
Multiply the numerator by the reciprocal of the denominator.
15292⋅12
Step 5
Multiply15292⋅12.
Multiply15292 by 12.
15292⋅2
Multiply2 by 2.
15294
15294
Step 6
Divide.
382.25
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.