Basic Math Examples

Find the Mean 12 , 15 , 18 , -7 , -4
, , , ,
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
Subtract from .
Step 2.4
Subtract from .
Step 3
Divide.