Statistics is a fairly new subject. Students don't realise that all of it is made up! By which I mean that anybody can create a new metric, then you have to analyse whether that metric has any validity etc. If it does, you've invented a new statistical measure :-) Early papers from the Royal Statistical Society seem really basic now, but worth a student just knowing how such measures are constructed.
SHHHHHHHHHH!
Statistics is a fairly new subject. Students don't realise that all of it is made up! By which I mean that anybody can create a new metric, then you have to analyse whether that metric has any validity etc. If it does, you've invented a new statistical measure :-) Early papers from the Royal Statistical Society seem really basic now, but worth a student just knowing how such measures are constructed.