ClarityHow to use this tool
- Enter x values, y values.
- Select Calculate to view the result.
- Check the method and assumptions below before using the result.
Input reference and sample values
Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.
| Input | Format and units | Sample |
|---|---|---|
| X values | Keep the structure and separators shown in the sample. Line breaks are retained in this input. | 1,2,3,4 |
| Y values | Keep the structure and separators shown in the sample. Line breaks are retained in this input. | 2,4,5,8 |
Result for these sample inputs
0.981155781
Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.
The method, explained
r = sum[(x − mean x)(y − mean y)]/√[sum(x − mean x)² × sum(y − mean y)²].
Using x values = 1,2,3,4, y values = 2,4,5,8, the result is 0.981155781. Change these example inputs to match your task; use the method above to check each step.
What to keep in mind
Correlation does not establish causation. Sensitive to outliers and nonlinear structure. A descriptive or probability calculation under the stated assumptions. Check the sample design and model before interpreting results.
Methodology maintained by ClarityKit. How these tools are built and checked.