Identify the measures of variability

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1. Define Variability and identify two purposes a good measure of variability serves:

2. Identify the 3 measures of variability and define each (list the symbols and formulas for calculating each).

3. Distinguish between measuring the variance & standard deviation for a population versus a sample.

4. What makes a sample variance an unbiased or biased statistic?

5. Compute Measures of Variability( SS, s², & s) for the following sample data:

10?? 7?? 6?? 10 ??6?? 15

Reference no: EM132857133

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