# Quotation about $\pi$ and the number of deaths

I read more than once a story which took place, if memory serves me well, in England, in the XIXth century. A statistician (or a mathematician) was making computations about life expectancy (or mortality rate). Those computations involved the normal distribution and therefore the number $$\pi$$. Someone asked that person what that symbol meant and the answer was that it is the ratio between the perimeter of a circle and its diameter. The person who asked then replied something like “That is surely a delusion, since the ratio between the perimeter and the diameter of a circle cannot possibly have anything to do with [whatever the other fellow was computing]”.

Can anyone find the whole story?