Answer :

The 68-95-99.7 empirical rule explains the distribution of values in a normal distribution and its significance.

The 68-95-99.7 empirical rule, also known as the Empirical Rule, states that for data following a bell-shaped and symmetric distribution, about 68% of the values are within one standard deviation of the mean, 95% are within two standard deviations, and 99.7% are within three. This rule is important in understanding the spread of data and making predictions based on normal distributions.