Empirical Rule Calculator (68-95-99.7 Rule)
The Empirical Rule (also known as the 68-95-99.7 rule) states that for a normal distribution:
- Approximately 68% of data falls within 1 standard deviation of the mean
- Approximately 95% of data falls within 2 standard deviations of the mean
- Approximately 99.7% of data falls within 3 standard deviations of the mean
Input Parameters
The center of your distribution
Measures the spread of your data
Calculate probabilities for this value