ref: 204fc778c3e2deab0480d1689dedcb2ea60d2a0e
dir: /stt/variancedist.t/
For many types of applications, the interval containing about two thirds of the observations is... .Bp For many types of applications, the interval containing about two thirds of the observations is: .EQ left [ X highbar - s ; X highbar + s right ] .EN