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Basic Math Examples
,
Step 1
Step 1.1
Factor out of .
Step 1.2
Rewrite as .
Step 2
Pull terms out from under the radical.
Step 3
Multiply by .
Step 4
The mean of a set of numbers is the sum divided by the number of terms.
Step 5
Step 5.1
Factor out of .
Step 5.2
Factor out of .
Step 5.3
Factor out of .
Step 5.4
Cancel the common factors.
Step 5.4.1
Factor out of .
Step 5.4.2
Cancel the common factor.
Step 5.4.3
Rewrite the expression.
Step 5.4.4
Divide by .
Step 6
Divide.
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.