Monday, 6 June 2011

Water meter

It hasn't rained very much in the south for months. Funnily enough, the only day of rain coincided with our visit to Oxford! It has become common to have a water meter if you don't have many people living in your house. I was interested to note that the volume was measured in cubic metres. Note from the photograph that it measures to the nearest 1000th of a cubic metre, which is actually a litre. You are not billed to that precision though.
The booklet that came wih the metre alarmed me. The number of people is a discrete variable and so this data should really have been plotted as a bar graph. Whereabouts should one person read their typical usage volume??