Whether standard deviation was 6 months or 6 years

Reference no: EM131394436

A friend tells you about a recent study dealing with the number of years of teaching experience among current college professors.

He remembers the mean but can't recall whether the standard deviation was 6 months, 6 years, or 16 years. Tell him which one it must have been, and why.

Reference no: EM131394436

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