mean(25,30)
Evaluate
\frac{55}{2}=27.5
Factor
\frac{5 \cdot 11}{2} = 27\frac{1}{2} = 27.5
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25+30=55
To find the mean of the set 25,30 first add the members together.
\frac{55}{2}
The mean (average) of the set 25,30 is found by dividing the sum of its members by the number of the members, in this case 2.