Pre-Algebra Examples

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The mean of a set of numbers is the sum divided by the number of terms.
Simplify the numerator.
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Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Add and .
Divide.
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.
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