I'm simply suggesting that for many penalty takers (Eden Hazard a good example actually) their technique is to send the keeper the wrong way. I can't find it anywhere, but I'd love to see Hazard's penalty map. Iirc his record is something like 1 or 2 misses from 25 penalties. I'd wager more than 50% are in 'saveable areas'.
Hazard's style is to, typically, place it along the floor, with the keeper going the other way. IIRC, the analysis of which way shows that there is no pattern, its basically random.
IF he has a technique which means his is able to send keepers the wrong way consistently (or he can tell which way the keeper will dive, and puts it the other side), then it's not random.
If it was random then the keeper would go the right way as often as the wrong way.
random as in the stats would show a random distribution based upon the keeper guessing which way