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When making a good markdown decision, a retailer should
Cohen's D
A measure of the size of an effect or difference between two group means, expressed in standard deviation units.
Variance
A measure of how much values in a data set differ from the mean of the set.
Cohen's D
Cohen's d is a statistic used to quantify the difference between two means, measured in standard deviations.
Cohen's D
A measure of effect size indicating the standardized difference between two means.
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