So, as an example, if if the question is what proportion of children eat all their school dinner, you know to count the number of children going into the dining hall, and the number coming out in only 5 min (less time than it takes to eat all the dinner)?
As for spreadsheets, I have found them to be inordinately useful tools, from use as simple databases, to doing complex data analysis with graphical outputs that lay people can understand. I even use Excel as a basic drawing tool for things like speaker design or house plans!
Iām not quite sure what exactly you mean, but the type of data would depend on the what I was trying to assess, the purpose, and the precision approptiate.
Had a maker when children were at home, possibly Cuisart or Moulinex. Kept the bowl in the freezer, essentially made a custard from egg yolks, cream, sweetened, flavoured. Put it in the frozen bowl, put that in the machine that churned for an hour. Put the bowl back in the freezer, churned again, emptied into a tub to store in the freezer.
Posh, more expensive machines had an inbuilt freezer element.