Question: I have a set of callipers that can measure thicknesses of a few inches with an uncertainty of ±0.005 inches. I measure the thickness of a deck of 52 cards and get 0.590 in.
(a) If I now calculate the thickness of 1 card, what is my answer (including its uncertainty)?
(b) I can improve this result by measuring several decks together. If I want to know the thickness of 1 card with an uncertainty of only 0.00002 in, how many decks do I need to measure together?