Correlation Coefficient

High School Math based on the topics required for the Regents Exam conducted by NYSED.

Linear Regression & Correlation Coefficient by Calculator
How to compute the linear regression equation, y=ax+b, the linear correlation coefficient, r, and the coefficient of determination, r², using the TI-84 calculator, including turning the diagnostics on.

Ti 83/84: Linear Regression & Correlation Coefficient
Linear Regression, r and r² This video demonstrates how to generate the least squares regression line for a set of (x, y) data, how to make a scatter plot of the data with the line shown, and how to predict values of y using the regression line on the Ti-83/84 series graphing calculator.

Showing R value on TI-84
The TI-84 can display an R-value when fitting a regression line (best fit line) to data. The R-value is a numerical way of determining how closely the regression line fits the plotted data. The closer the R-value is to +/-1, the better it fits the data.

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.