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A tutorial on the Student t distribution.

A tutorial on the normal distribution.

A tutorial on computing the cumulative frequency graph of quantitative data in statistics.

A tutorial on computing the cumulative relative frequency graph of quantitative data in statistics.

A tutorial on computing the pie chart of qualitative data in statistics.

A tutorial on computing the bar graph of qualitative data in statistics.

A tutorial on the concept of data frames in R. Using a build-in data set sample as example, discuss the topics of data frame columns and rows. Explain how to retrieve a data frame cell value with the square bracket operator. Plus a tips on how to take preview of a data frame.

A tutorial on how to combine two vectors into a new vector, and the implication of value coercion.

A tutorial on the concept of vectors in R. Discuss how to create vectors of numeric, logical and character string data types.