The statistical thinking underlying Sx Sigma is based on the following three principiet:AnsweryAl work is subiect to varying performance outcomes; the amount of variability can be limited with proper application of statiatical methods; and the lighter the une of snatistical controls the lower the degree of variability.Al work id tubiect to wanine performance outcomes; these performance wariations are chiefly due to a lack of proper flocus and artertion to detal on the part of morkers, and insulficient worker focus and attention to detal can be controled by proper application of thatistical controls.All work is a process, all processes have wariablity, and all procentes create data that explains variabilly.At work is a statiatically contsolabie process, a tighty-controlled statistical process can reduce varlablily in performanoe oucomes: and every properfy-controlled atalistical procein can achieve fewer than 5 errors or deflects per million iarations.At mork is subiect As varying performance outcomes, the accuracy whth which work is performed is thatistically controllable, and every wel-controled work activity can achieve fewer than 75 errorn or defects per milion Berabota.