fuel stop

Work at CVK with short stop to check out any activity at the Westhafen. 

Had a long discussion with Max about various distributions, the difference between mean and median (we started by talking about income). Once we arrived at standard deviation we discussed measurements and what sort of errors you might get. We put it to the test by measuring the shorter side of the table a number of times with a measuring tape and a short ruler. We certainly ended up with some systematic errors when we used the ruler.