ABSTRACT
The interpretation of Fig. 3.1 is relatively straightforward. Each obser vation is represented by one dot on the scale of the variable, which is height in this case. Looking at the dotplot, we see that the dots are fairly evenly spread across the range 155 to 185 cm, with perhaps a tendency to bunch more in the range 163 to 170 cm. The dots are more or less symmetrically distributed about a ‘middle’ value of approximately 167 cm.
