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The mean of a set of numbers is the sum divided by the number of terms.

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Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Divide.

Find the Mean (Arithmetic) 110,110,112,113,112,110,115,115,114,111,114,112,114,115,115,115,114,115,115,115,115,116,116,118,120,122,118,118,117,115