ref: f62136844cbb2fae4087a8df08664bcad2c9c5b4
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