Introducing Variance and Standard Deviation
Variance and Standard Deviation
Measures of central tendency (mean, median and mode) provide information on the data values at the centre of the data set. Measures of dispersion (quartiles, percentiles, ranges) provide information on the spread of the data around the centre. In this section, we will look at two more measures of dispersion called the variance and the standard deviation.
This lesson is part of:
Statistics and Probability
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