Correlation Calculator

Calculate correlation coefficients between two variables

Data Points

How to Use the Correlation Calculator

  1. Enter your X and Y values for each data point
  2. Add more data points using the "Add Point" button
  3. Remove data points if needed
  4. Click "Calculate Correlation" to see the results

Understanding Correlation Coefficients

The correlation coefficient (r) ranges from -1 to 1 and indicates the strength and direction of the relationship:

  • 1.0: Perfect positive correlation
  • 0.7 to 0.9: Strong positive correlation
  • 0.3 to 0.6: Moderate positive correlation
  • 0.1 to 0.2: Weak positive correlation
  • 0: No correlation
  • -0.1 to -0.2: Weak negative correlation
  • -0.3 to -0.6: Moderate negative correlation
  • -0.7 to -0.9: Strong negative correlation
  • -1.0: Perfect negative correlation

Tips for Accurate Correlation Analysis

  • Use a sufficient number of data points (at least 10 recommended)
  • Ensure your data is normally distributed
  • Check for outliers that might affect the correlation
  • Consider the context of your data
  • Remember that correlation does not imply causation

Common Applications

  • Market research and trend analysis
  • Scientific research and data analysis
  • Quality control and process monitoring
  • Financial analysis and risk assessment
  • Educational research and assessment