Page 9 - Yellow Belt Six Sigma

Table of σ?

1σ 31% defect-free (or 69% yield)

2σ 69% defect-free (or 31% yield)

3σ 93.3% defect-free (or 6.7% yield)

4σ 99.4% defect-free (or 0.6% yield)

5σ 99.977% defect-free (or 0.023% yield)

6σ 99.996% defect-free (or 0.0034%

yield)