Calculating the mean (average) of a dataset
This video describes the formula for calculating a mean or average of a particular dataset, and then provides a practical example of how to apply the formula, using a small example dataset.
Calculating the variance and standard deviation of a dataset
This video shows you how to calculate the standard deviation and the variance of a dataset, using a small example dataset. It with an expansion of the basic formula for the sample variance and then applied the formula to a small example dataset.
Numeric frequency distributions and histograms
This video shows you how to create a frequency distribution, using numeric data, and a histogram, based on the frequency distribution.