According to Pareto s principle, x% of defects can be traced to y% of all causes. What are the values of x and y?

According to Pareto s principle, x% of defects can be traced to y% of

1.	According to Pareto s principle, x% of defects can be traced to y% of all causes. What are the values of x and y?
A.	60, 40
B.	70, 30
C.	80, 20
D.	No such principle exists
Answer» D. No such principle exists