Trading Math
Using the standard formalisms only within appropriate contexts Fitting (using an optimization method) a weighted sum, a line or a curve or a whole “plane” to match the data. Statistics This is, by definition, observing, categorizing and counting observations (which also means “measuring”) that already happened. There is no notion of any potential or possible outcomes. We just observe and count (measure). My favorite example is from archery, when one just measures the distances between hits (arrows), sum them and divide by the number of shots fired (which is averaging of the distances)....