Empirical Rule

• The Empirical Rule approximates the variation of data in a bell-shaped distribution
• Approximately 68% of data in a bell-shaped distribution is within 1 standard deviation of the mean

• Approximately 95% of data in a bell-shaped distribution is within 2 standard deviations of the mean

• Approximately 99.7% of data in a bell-shaped distribution is within 3 standard deviations of the mean

REFERENCES
https://www.greatlearning.in/great-lakes-pgpba/