HP, Thanks for the explanation, it's probably me who doesn't have a full grasp of the way statistics work.
No I did maths A level a zillion years ago and that was about it! So no true understanding of these things myself
Really it is just fairer than raw case numbers because they take no account of population levels. Pop Scores do so they are at least better than just comparing cases. Though the actual case numbers do tell you things too which is why I gave them with the ups and downs day to day and week to week which were more helpful.
Low numbers might bring sone inequity. I do not have the knowledge to know. But I assume the governme t use Pop Scores to make all decisions and not case numbers as such. So presumably they have been advised by mathematicians that is the best way.
All case related numbers are just guides anyway not literal day to day changes as cases announced on any day are from tests carried out over several past days and so go up and down if batches are delayed or delivered fast and the weekly Pop numbers and week to week case numbers I used to post the tables for tell you different nuances of that.
Bury on the weekly cases has long been top or near top (as in lowest score) because of its low population.
So I used to keep posting all the many sets of numbers daily not because I was obsessed (they were tine consuming) but because only that spread of different sets gives the full picture for any one location.
And is usually why the media miss changes happening as they appear at different times in different sets of data and some may never last long enough to turn up on the ones the media refer to - as these are always 5 days old data trying to account for the time lag in delivering test results.
It does help in that regard but also means you see things like astronomers do - always looking at the past. Though happily only a few days not countless many years when looking at nearby stars or galaxies.
There aer always going to be flaws with any one measure. But the Pop Score is the most rounded and is the one governbment decisions stem from. Though Bury is nowhere near the level when that would happen. Still well below where Trafford was a week or two ago. Or Stockport. And nobody even noticed that or at least said they did publicly. So Bury is not in any real trouble right now.