"1915-12-13Z"^^ . . . "Wilfrid Joseph Dixon (December 13, 1915 \u2013 September 20, 2008) was an American mathematician and statistician. He made notable contributions to nonparametric statistics.A native of Portland, Oregon, Dixon received a bachelor's degree in mathematics from Oregon State College in 1938. He continued his graduate studies at the University of Wisconsin\u2013Madison, where he earned a master\u2019s degree in 1939. Under supervision of Samuel S. Wilks, he then earned a Ph.D."@en . . . . . .