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State four characteristics of the standard deviation

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Reference no: EM131671917

Question: 1. What are the degrees of freedom for sample variance?

2. What does the standard deviation measure?

3. Based on the empirical rule, what percentage of data fall within 1 SD, 2 SD, and 3 SD of the mean for data that are distributed normally?

4. State four characteristics of the standard deviation.

Reference no: EM131671917

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