If a variable is interval-ratio in level of measurement, the preferred measure of variation would be________.

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Quizplus · Accepted Answer

If a variable is interval-ratio in level of measurement, the preferred measure of variation would be the standard deviation. The range is not preferred as it only accounts for the difference between the maximum and minimum values and does not take into account the variability within the data. The mean is a measure of central tendency, not variation. Percentiles are a measure of relative position, not variation.

If a Variable Is Interval-Ratio in Level of Measurement, the Preferred