Measures of variability match-up There are multiple ways to refer to or describe

Question

Measures of variability match-up There are multiple ways to refer to or describe a variance or a standard deviation of either a population or a sample likewise, each measure has multiple appropriate equations or symbols. The left table consists of alternative ways of referring to each of these measures. The right table consists of equations or symbols for each of these measures. Alternative Description a. Average squared distance from M b. Square root of the mean squared deviation from the population mean c. Average squared distance from mu d. Square root of the average squared distance from M For each of the following four measures, select one appropriate description from left table (lettered) and appropriate equation or symbol table (numbered). Each answer will be used only once. Measure Sample variance Population variance Sample standard deviation population standard deviation

Explanation / Answer

The complete table will be:

Measure Alternative Description Equation or Symbol Sample Variance a 3 Population Variance c 2 Sample Standard deviation d 4 Population Standard deviation b 1

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