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Questions and Answers
Which measure of statistical dispersion is a nonnegative real number that is zero if all the data are the same?
Which measure of statistical dispersion is a nonnegative real number that is zero if all the data are the same?
- Variance
- Range
- Standard deviation
- Interquartile range (IQR) (correct)
Which measure of statistical dispersion is a robust measure of scale?
Which measure of statistical dispersion is a robust measure of scale?
- Distance standard deviation
- Mean absolute difference
- Median absolute deviation (correct)
- Average absolute deviation
Which measure of statistical dispersion has the same units as the quantity being measured?
Which measure of statistical dispersion has the same units as the quantity being measured?
- Interquartile range (IQR)
- Range
- Mean absolute difference
- Standard deviation (correct)
Which measure of statistical dispersion is affected by extreme outliers?
Which measure of statistical dispersion is affected by extreme outliers?
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Which measure of statistical dispersion is the extent to which a distribution is stretched or squeezed?
Which measure of statistical dispersion is the extent to which a distribution is stretched or squeezed?
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