The rule is often called Chebyshev's theorem, about the range of standard deviations around the mean, in statistics. The inequality has great utility because it can be applied to completely arbitrary distributions (unknown except for mean and variance). For example, it can be used to prove the weak law of large numbers. In practical usage, in contrast to the 68-95-99.7% rule, which applies to normal distributions, under Chebyshev's inequality a minimum of just 75% of values must lie within two standard deviations of the mean and 89% within three standard deviations.
City of Page. Welcome to City of Page, Arizona. Page is a small town in northern Arizona located on the southern shores of magnificent Lake Powell. Our friendly community offers visitors outstanding recreation and a wide variety of lodging and services.
PAIGE, TX. PAIGE, TEXAS. Paige is on U.S. Highway 290 forty-four miles east of Austin in northeast Bastrop County. The Old San Antonio Road, now State Highway 21, borders the north side. Paige was established at the site of a railroad water tower on the newly built Houston and Texas Central Railway in 1872 and named for Norman Paige, a civil engineer, who had laid out the route of the railway. In 1874 a post office was established.