Walker
Walker earned his undergraduate degree in applied math from Columbia University and later finished a master's degree in statistics from Duke University. He now works for the New York Yankees as a quantitative analyst in their front office.
Alex H.
Alex is currently pursuing a PhD in Inorganic Chemistry at MIT. She previously earned her BS in Chemistry at CalTech, where she was recognized with the Merck Index Award.
Sally
Sally is a software engineer at an EdTech company in Boston. She has a BA from Princeton University in Computer Science, where she researched high school computer science pedagogy and curriculum.