The mean of a set of numbers is the sum divided by the number of terms.
12+2232
Step 3
Cancel the common factor of 12+223 and 2.
Factor2 out of 12.
2⋅6+2232
Factor2 out of 223.
2⋅6+2(113)2
Factor2 out of 2⋅6+2(113).
2⋅(6+113)2
Cancel the common factors.
Factor2 out of 2.
2⋅(6+113)2(1)
Cancel the common factor.
2⋅(6+113)2⋅1
Rewrite the expression.
6+1131
Divide6+113 by 1.
6+113
6+113
6+113
Step 4
To write 6 as a fraction with a common denominator, multiply by 33.
6⋅33+113
Step 5
Combine6 and 33.
6⋅33+113
Step 6
Combine the numerators over the common denominator.
6⋅3+113
Step 7
Simplify the numerator.
Multiply6 by 3.
18+113
Add 18 and 11.
293
293
Step 8
Divide.
9.‾6
Step 9
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.