now we could force perfect correlation by fabricating totally linear relationshipso let' take look at an example of thatqvsdibtf"npvou qbhf qffet tdbuufs qbhf qffetqvsdibtf"npvou dpssfmbujpo qbhf qffetqvsdibtf"npvou and againhere we would expect the correlation to come out to - for perfect negative correlationand in factthat' what we end up withagaina remindercorrelation does not imply causality just because people might spend more if they have faster page speedsmaybe that just means that they can afford better internet connection maybe that doesn' mean that there' actually causation between how fast your pages render and how much people spendbut it tells you there' an interesting relationship that' worth investigating more you cannot say anything about causality without running an experimentbut correlation can tell you what experiments you might want to run