# Secondary Catalogue

## Series: Regression

### Chi-Square Tests

In this video we'll look at several examples of different types of chi-square tests, including a test for homogeneity, a test for association/independence, and a goodness-of-fit test.

### Coefficient of Determination and Rmse

In this video we'll learn how to calculate the coefficient of determination and the root mean square error (RMSE), and we'll look at how these values relate to the scatterplot of the data set.

### Correlation Coefficient and the Residual

In this video we'll learn how to calculate the correlation coefficient and residual for a data set, and we'll look at how these values relate to the scatterplot of the data.

### Scatterplots and Regression

A scatterplot is a graph of data in a rectangular coordinate plane that we make just by plotting individual data points in the plane. Given enough data points, we'll sometimes be able to see a trend in the scatterplot data. But whether or not we...Show More