The derivation of rules from data analysis

- [Narrator] A dancer has to spend years … working on their craft to deliver a masterful performance. … One of the paradoxes of this training is that sometimes … you have to think a little bit less in order to move better. … Your conscious processes can interfere … with fluid and meaningful movement. … Sometimes you just have to calm down all your ideas … about expert decision-making systems … and the rules that they bring along, … and let the data have a say in … how you should go about your work. … We'll start by looking at linear regression, … which is a common and powerful technique … for combining many variables in an equation … to predict a single outcome, … the same way that many different streams … can all combine into a single river. … We'll do this by looking at an example … based on a data science salary survey. … So this is based on real data, … and the coefficients are based on the actual analysis, … although I'm only showing a few of the variables … that went into the equation. …