Regularity of variance: ถ้าความมแปรปรวนเกิดขึ้นบ่อยๆถือว่าความแปรปรวนนี้เป็นปัญหาใหญ่ของบริษัทและควรรีบหาทางแก้ไขปัญหานี้ให้เรียบร้อย แต่ถ้าเกิดเพียงแค่ครั้งเดียวถือว่าไม่เป็นปัญหาเท่าไร
Regularity of variance: pruan if maprae occurs most often treated this as a major problem of variation and should be in a hurry to find a solution for this problem. But if it happened just once, considered to be the problem?
Regularity of variance: if a variance occurs it is this variability is a major issue for the company and should seek to resolve this problem completely. But if that happens just once, it is not a problem.
Regularity of variance: if the variation was often considered variance, this is a big problem of the company and ควรรีบ figure solve this problem properly. But what if only once, not considered the problem?