This is a horizontal line labelled `Rainfall(inches).’ A scale is marked on the line and each division represents one tenth of an inch. Dots are plotted on the scale at 4.5, 4.6, 5.2, 5.8 and 9.3. A vertical arrow points to the mark which represents 5.9 and this is labelled as the mean. A vertical arrow points to the mark which represents 5.2 and this is labelled as the median.