“An average is a substitute for a complex group of variables but it is not always safe to depend…

“An average is a substitute for a complex group of variables but it is not always safe to depend…

“An average is a substitute for a complex group of variables but it is not always safe to depend on the substitute alone to the exclusion of individual measurements of groups” Discuss

“An average is a substitute for a complex group of variables but it is not always safe to depend…

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