A series of free Statistics Lectures & solutions in videos.
These lectures cover the concepts of variance, standard deviation, quartiles, percentiles, interquartile range and discuss the effects of outliers.
Variance, standard deviation and interquartile range are measures of dispersion, giving a idea of how the data is spread out.
This is the fifth page of the series of free video lessons, "Statistics Lectures".
Variance and Standard Deviation of a Population
Variance and Standard Deviation of a Sample
Percentiles and Quartiles
The Five Number Summary, Interquartile Range (IQR), and Boxplots
The Effects of Outliers
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