Answer:
D. Using a bar graph where one bar has a length of 2.4 and one bar has a length of 1.8
Step-by-step explanation:
A bar graph will best represent this data because it has categories ; college student and college graduate. A bar graph with y axis values representing distance in miles covered per day and with an x axis for the categories.
The first for a pie chart is incorrect because pie charts best represent data with percentages.
The second choice to use a square where the length represents distance covered in miles is incorrect because of the units used for the square measurement though if similar squares are used, the data could be represented.
The third option is incorrect cause the cubes will have different dimensions which might mean two different items of study are presented.
The correct answer is : option D