In a normal distribution, 99.7% of the values falls within three standard deviation from the mean.
What is empirical rule?
Empirical rule states that for a normal distribution, 68% of the values falls within one standard deviation from the mean, 95% of the values falls within two standard deviation from the mean and 99.7% of the values falls within three standard deviation from the mean.
Hence:
In a normal distribution, 99.7% of the values falls within three standard deviation from the mean.
Find out more on empirical rule at: https://brainly.com/question/10093236