ref: cf9b967739feccdc4aab5470f5df76dfefcea7a9
dir: /stt/variancedist.2.t/
For many types of applications, the interval containing most of the observations is... .Bp For many types of applications, the interval containing most of the observations is: .EQ left [ X highbar - 2s ; X highbar + 2s right ] .EN