The empirical rule shows that 68% of the distribution lies within one standard deviation, in this case, from 11.6 to 14.6 years. Thus, the remaining 32% of the distribution lies outside this range.

This relationship is known as the 68-95-99.7 rule (or the empirical rule). ... The assumption of a normal distribution is fundamental in many financial pricing models used to predict future ...

This distribution of data points is called the normal or bell curve distribution. For example, in a group of 100 individuals, 10 may be below 5 feet tall, 65 may stand between 5 and 5.5 feet and ...