Basic Math Examples

Find the Mean 7.8 , 5.5 , 9.5 , 5.2 , 1 6 , 1.4 , 7.5 , 6.9 , 8.7 , 5.7 , 2.2
, , , , , , , , , ,
Step 1
The mean of a set of numbers is the sum divided by the number of terms.
Step 2
Simplify the numerator.
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Step 2.1
Add and .
Step 2.2
Add and .
Step 2.3
Add and .
Step 2.4
Add and .
Step 2.5
Add and .
Step 2.6
Add and .
Step 2.7
Add and .
Step 2.8
Add and .
Step 2.9
Add and .
Step 2.10
Add and .
Step 2.11
Add and .
Step 3
Divide by .
Step 4
Divide.
Step 5
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.