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An encyclopedia has 30 volumes. The total weight of these volumes is 71 and 1/4 pounds. The average weight of a volume is 2.375.
What is the interpretation of average?
Arithmetic mean is the best central measure available for representing the values of a data set. It is also called the average of the values of the considered data set.
It serves as the predicted value(in case no other information of the data is available) of that data set.
Average provides ill information in case of skewed data.
An encyclopedia has 30 volumes. The total weight of these volumes is 71 and 1/4 pounds.
The average weight of a volume
= 71 / 30
= 2.375
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