The size of the chosen symbols on a graph may be used to indicate the:
a) location of the data
b) coordinates of the data
c)uncertainty of the data
d)relationship of the variables

D)relationship of the variables

Explanation:

A graphical representation drawn on the graph is used to show the relationship between the two variables amongst each other as the places located on the x and y coordinated tell us the about the properties of the variables and thus helps in understanding the relationship the data has or tends to show. Thus the graph symbols drawn hence show the amount of information that is represented by the bars, lines, and the circles, etc. Bigger symbols on the graph do not matter much as each symbol is represented on the linear pattern. Quantity of data is thus represented in relation to the other symbols on the graph.