I'm a math major and most of the expert data scientists I would recommend are social science graduates. They have a lot more experience with real-world data an

I'm a math major and most of the expert data scientists I would recommend are social science graduates. They have a lot more experience with real-world data and a lot more knowledge about what statistical techniques and assumptions correctly apply in real situations - quantitatively and qualitatively. You simply don't get this knowledge and experience from a maths-led statistics course. I would be happy to recommend you a history major.