Find the Mean (Arithmetic) 18 , 18 , 17.5 , 19.5

Math
18 , 18 , 17.5 , 19.5
The mean of a set of numbers is the sum divided by the number of terms.
18+18+17.5+19.54
Simplify the numerator.
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Add 18 and 18.
36+17.5+19.54
Add 36 and 17.5.
53.5+19.54
Add 53.5 and 19.5.
734
734
Cancel the common factor of 73 and 4.
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Rewrite 73 as 1(73).
1(73)4
Cancel the common factors.
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Rewrite 4 as 1(4).
1⋅731⋅4
Cancel the common factor.
1⋅731⋅4
Rewrite the expression.
734
734
734
Divide.
18.25
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.
18.3
Find the Mean (Arithmetic) 18 , 18 , 17.5 , 19.5

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