Category: statistics
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the end is near
I spotted a news item today posted on the CNN website with the following headline: “Near-Earth asteroid Bennu could hit Earth in 157 years and set off a global ‘impact winter,’ study says” At first blush it seemed like an article worth skipping, as I expect neither my wife nor myself to be alive in…
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survivorship bias
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During World War II, researchers at the Center for Naval Analyses conducted a study on the damage done to Allied aircraft returning after bombing missions. Based on damage assessments, they recommended adding armor to those areas showing the most extensive damage in order to minimize future losses to enemy fire. However, Abraham Wald suggested that…
