68 95 99 rule

3 days ago · The empirical rule, or the 68-95-99.7 rule, states that 68% of the data modeled by a normal distribution falls within 1 standard deviation of the mean, 95% within 2 standard deviations, and 99.7% within 3 standard deviations. For example, IQ is designed to have a mean of 100 and a standard deviation of 15, meaning that 68% of people have IQs ... juragan 99 medaeng