Page 10 - Yellow Belt Six Sigma
P. 10

Examples of σ? Airlines












                               1σ                                - This means that there could be up to 11,373,859 errors or defects



                               2σ                                - This means that there could be up to 5,075,450 errors or defects




                               3σ                                - This means that there could be up to 1,098,975 errors or defects




                               4σ                                - This means that there could be up to 102,155 errors or defects




                               5σ                                - This means that there could be up to 3,833 errors or defects



                               6σ                                - This means that there could be up to 56 errors or defects






                                                             Roughly 16,425,000 flights per year

                                                             In 2021, there were 21 airline accidents reported
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