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I recently taught a session on Logistic Regression to a group of Lean Six Sigma Black Belts. It’s one of those seldom-used tools that many Black belt programs don’t cover and, perhaps, with good reason. The case study of the space shuttle “Challenger”, NASA’s ill-fated 25th space shuttle flight, is a common reference when presenting logistic regression (both binary and ordinal) and a reminder of the fallibility of the human condition. How much did launch delays and politica