Answer :
The option that is not regarded as a measure of variability in the question is Regulated difference.
- Variability can be regarded as the extent to which a distribution can be stretched or the extent it can be squeezed.
- Variability express spread scores in a distribution out, it gives the amount of spread of the scores around the mean.
- For instance, distributions that has same mean can have different amounts of variability.
- Examples of measures of variability includes
- variance
- standard deviation
- interquartile range.
- variance can be regarded as expectation of the squared deviation of a random variable gotten from its sample mean. Variance can be explained as measure of dispersion.
- Standard deviation can be regarded as a measure of the amount of variation in a set of values. when there is low standard variation, then the value is closer to the mean
- Range can be regarded as the difference in the highest and lowest value as regards a sample.
Therefore, option D is right.
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