Colin Lingwood Mallows

Colin Lingwood Mallows (10 September 1930 – 4 November 2023) was an English statistician, who worked in the United States from 1960.

[2] He was known for Mallows's Cp, a regression model diagnostic procedure, widely used in regression analysis and the Fowlkes–Mallows index, a popular clustering validation criterion.

[3][4] Mallows began studying at University College London (UCL) in 1948 and received in 1951 his bachelor's degree and in 1953 his Ph.D. (at the age of 22) from under Florence Nightingale David and Norman Lloyd Johnson with thesis Some problems connected with distribution problems.

Mallows and George Box are the only two statisticians to have received all three of those honours.

[6] Mallows solved a $10,000 mathematical problem posed by John Horton Conway,[7] but declined the prize money on the grounds that the problem was too easy.