Central tendency and Dispersion
Mean, Mode, Median, Range, Variance, Standard Deviation Measures of central tendency, such as the mean, median and mode, are very useful ways of representing large amounts of data with just one value. They can be very useful in forming conclusions about data, but they can also misrepresent data and hide information. Measures of dispersion, such as range, interquartile range, variance and standard deviation are ways...