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## How do I calculate the correlation coefficient?

**Here are the steps to take in calculating the correlation coefficient:**

- Determine your data sets.
- Calculate the standardized value for your x variables.
- Calculate the standardized value for your y variables.
- Multiply and find the sum.
- Divide the sum and determine the correlation coefficient.

## How do I calculate correlation coefficient in Excel?

**Method A Directly use CORREL function**

- For example, there are two lists of data, and now I will calculate the correlation coefficient between these two variables.
- Select a blank cell that you will put the calculation result, enter this formula =CORREL(A2:A7,B2:B7), and press Enter key to get the correlation coefficient.

### Calculating Pearson’s r using CAS (Casio ClassPad)

### Images related to the topicCalculating Pearson’s r using CAS (Casio ClassPad)

## How do you calculate the correlation coefficient on a scatter plot?

If you’ve worked in parts, you can calculate R as simply **R = s ÷ t**. You will get an answer between −1 and 1. A positive answer shows a positive correlation, with anything over 0.7 generally being considered a strong relationship.

### Correlation Coefficient on a TI-Nspire

### Images related to the topicCorrelation Coefficient on a TI-Nspire

## Is Pmcc an R?

The Product Moment Correlation Coefficient (PMCC or **sometimes just r**) is a number that tells you how correlated your data are.

### Using TI-nspire to find correlation coefficient

### Images related to the topicUsing TI-nspire to find correlation coefficient

## How do you find the correlation coefficient on a TI-84?

**TI-84: Correlation Coefficient**

- To view the Correlation Coefficient, turn on “DiaGnosticOn” [2nd] “Catalog” (above the ‘0’). Scroll to DiaGnosticOn. [Enter] [Enter] again. …
- 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.

## How do you find r2 on Excel?

**Double-click on the trendline, choose the Options tab in the Format Trendlines dialogue box, and check the Display r-squared value on chart box**. Your graph should now look like Figure 6. Note the value of R-squared on the graph.

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