Covid-19

[robert@fm]

Worth noting there's a difference between precision and accuracy.

Just due to how maths work no matter how simple the inputs you end up with wierdly precise results unless you bother to truncate them. For example my average blood sugar over the last month has been 6.09301 because I don't know how to round on google sheets and can't be bothered finding out how .

The definition I once read was: If you take a set of measurements, and in each case subtract the result which should have been obtained from the one which actually was, the arithmetic mean of those error terms is the accuracy of the measurements; the standard deviation is the precision.

What @ConfusedCraig is referring to is the resolution, aka significance, a different matter from either of the above.