Stata Statistics Tutorial

A scatterplot is a type of plot that we can use to display the relationship between two variables. It helps us visualize…

A box plot is a type of plot that we can use to visualize the five number summary of a dataset, which includes:…

A Q-Q plot, short for “quantile-quantile” plot, is often used to assess whether or not the residuals in a regression analysis are normally…

A stem-and-leaf plot is a chart we can use to display data by splitting up each value in a dataset into a stem and…

Linear regression is a method we can use to understand the relationship between one or more explanatory variables and a response variable.…

Multiple linear regression is a method we can use to understand the relationship between several explanatory variables and a response variable.  Unfortunately, one problem…

A pie chart is a circular chart that uses “pie slices” to display the relative sizes of data. This tutorial explains how to…

Multiple linear regression is a method we can use to understand the relationship between several explanatory variables and a response variable.  Unfortunately, one problem…

Levene’s Test is used to determine whether two or more groups have equal variances. This is a widely used test in statistics because…

Logistic Regression is a method that we use to fit a regression model when the response variable is binary. Here are some examples of when…