Abraham Wald was a Hungarian-born statistician, widely recognized for his contributions to statistical decision theory and mathematical statistics, particularly during World War II. He was born on October 31, 1902, and went on to pursue a distinguished academic career. One of Wald's most notable contributions is the concept of "survivorship bias," which he illustrated through his work with the U.S. military. During the war, he was tasked with analyzing the effectiveness of aircraft armor.
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