[numberonepal]

The Empirical Rule
In statistics, the 68–95–99.7 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 one, two, and three 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.

[numberonepal]

Well I'll be. 17 months apart you say? Ain't that something?

[bitt]

oh thank you!!

I hated statistics....

[CJ Wolf]

The statistics don’t lie but the manipulator and gatherer of the numbers and the sampler matter to direct the out come of said math. Trust the sci