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Odds of a State Funeral on D5?
How many coincidences before mathematically impossible?
68–95–99.7 rule |
In statistics, the 68–95–99.7 rule, also known as the empirical rule, is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of two, four and six standard deviations, respectively; more accurately, 68.27%, 95.45% and 99.73% of the values lie within one, two and three standard deviations of the mean, respectively.
https://en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule |