When the Data is not Normal and the Central Tendency is Median, how shall We Work on Reducing the Spread Using Variance and Standard Deviation?

When the data is not normal and the central tendency is median, how shall we work on reducing the spread using variance and standard deviation?

When the Data is not Normal and the Central Tendency is Median, how shall We Work on Reducing the Spread Using Variance and Standard Deviation?

When the data is not normal and the central tendency is median, how shall we work on reducing the spread using variance and standard deviation?

When we have the data as not normal and the central tendency as median, then how shall we work on reducing the spread as these can be found using variance and standard deviation for which we need the mean.