Computer Programming I think.

Big data analysis depends heavily on algorithms for pattern matching and also estimates of statistical correlation. If you look at any training manual for electricians or plumbers, you will see that there are a lot of formulas in use to calculate currents and voltage in circuits and fluid flow through pipes given velocity, diameter and pressure variables.

Finance, management, bankers, economy, industry design, architecture, computer proggramme, machine design, robot design, and attire design, physic, and medicine I surmise apart from art.