This video discusses two other measures of variability that are often used in statistical studies: the variance and the standard deviation. You learn how to calculate the variance and standard…
In this video Matthijs discusses an example in which he uses all the core elements of this module. In the example, your data matrix contains the average grades in chemistry of 8 high schools.…
To describe a distribution you need more information than the measures of central tendency. You also need information about the variability (or dispersion) of the data. Matthijs discusses the…