Sometimes even an average is too much to ask. One of my pet peeves is articles about "number changed". Averages and significance never enter the discussion. Wo

Sometimes even an average is too much to ask. One of my pet peeves is articles about "number changed". Averages and significance never enter the discussion. Worst are the ones where he number is the number of times some random event happened. In that case there's a decent chance the difference is less than twice the square root, so assuming a Poisson distribution you know the difference is insignificant.