Statistics

Pearson Correlation Coefficient

Compute r = Σ(xáµ¢−xÌ„)(yáµ¢−ȳ) / √[Σ(xáµ¢−xÌ„)²·Σ(yáµ¢−ȳ)²] and test whether the correlation is statistically significant.

Live Calculator · Step-by-Step · Statistics
Inputs
Result
Correlation r
Enter values and calculate.

Step-by-Step Work

Your explanation will appear here.

Scatter Plot with Correlation Line
Put It Into Practice

The calculator shows the steps — a quiz proves you can do them on your own.

Stuck on Statistics? Get 1-on-1 help

Alexander tutors all math and CS levels — $55/session, free consultation.