Nussbaum earned a bachelor's degree from Rensselaer Polytechnic Institute and a master's and doctorate from George Washington University.
[1] Nussbaum joined the United States Environmental Protection Agency in 1975 and served as chief statistician from 2006 to 2016.
[2] Early in his career, Nussbaum helped lead a recall of 208,000 cars for excessive carbon monoxide emissions, based on a sample of just ten cars.
[4][5] Nussbaum was president of the American Statistical Association for 2017.
[1] He has also taught graduate statistics courses for Virginia Tech and George Washington universities.