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A focus group of high school students was surveyed about

A focus group of high school students was surveyed about their use of various drugs, including alcohol. Asked how frequently they had been drunk in the previous six months, the students responded:

Calculate the

(a) Range,

(b) Inter-quartile range, and

(c) Variance and standard deviation for these self-report scores.

Calculate the

(a) Range,

(b) Inter-quartile range, and

(c) Variance and standard deviation for these self-report scores.

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