## What is the correlation coefficient on TI-84?

IF you have a TI-84 and the screen looked like this: You need to turn your diagnostic on Press: 2nd, 0 to open catalog Press: x-1 to jump to the “D” section and scroll to “DiagnosticOn” Press: Enter twice and “Done” will appear Start at Step 3 again, and “r” will appear this time.

What is product-moment coefficient of correlation?

Definition. The Pearson product-moment correlation coefficient is a measure of the linear relationship between two questions/measures/variables, X and Y. The correlation value can range from +1 to -1. A positive correlation (e.g., +0.32) means there is a positive relationship between X and Y.

Why won’t my calculator show the correlation coefficient?

Step 0: Turn on Diagnostics If you don’t do this, r will not show up when you run the linear regression function. Press [2nd] and then  to enter your calculator’s catalog. Scroll until you see “diagnosticsOn”. Press enter until the calculator screen says “Done”.

### How do you find R and r2 on a TI 84?

TI-84: Correlation Coefficient

1. To view the Correlation Coefficient, turn on “DiaGnosticOn” [2nd] “Catalog” (above the ‘0’). Scroll to DiaGnosticOn. [Enter] [Enter] again.
2. Now you will be able to see the ‘r’ and ‘r^2’ values. Note: Go to [STAT] “CALC” “8:” [ENTER] to view. Previous Article. Next Article.

Is the correlation coefficient R or R 2?

The correlation coefficient formula will tell you how strong of a linear relationship there is between two variables. R Squared is the square of the correlation coefficient, r (hence the term r squared).

Is r2 the same as correlation coefficient?

The coefficient of determination, R2, is similar to the correlation coefficient, R. The correlation coefficient formula will tell you how strong of a linear relationship there is between two variables. R Squared is the square of the correlation coefficient, r (hence the term r squared).