Sigma Level (σ)

DPMO

Defects (%)

Yield (%)

6

3.4

0.00034

99.99966

5

233

0.023

99.977

4

6.210

0.62

99.38

3

66.807

6.68

93.33

2

308.537

30.8

69.2

1

691.462

69.1

30.9