Suppose you are given a graphical portrayal of a relative frequency distribution of continuous quantitative data with the following characteristics. The lower and upper limits of the data classes are identified by tick marks on a horizontal axis. The corresponding relative class frequencies are represented by the areas of vertical rectangles connected to each other and positioned on top of each of these class intervals. What is such a graphical presentation called?
A) a stacked bar chart
B) a Pareto chart
C) a pictogram
D) a relative frequency histogram

Question

Quizplus · Accepted Answer

The graphical portrayal described is a relative frequency histogram. This is because it displays continuous quantitative data with class intervals identified by tick marks on a horizontal axis and uses vertical rectangles to represent the corresponding relative frequencies of each class. A stacked bar chart would show multiple bars stacked on top of each other to show the composition of each bar, a Pareto chart would show a bar graph with the bars ordered by their heights, and a pictogram would use pictures or symbols to represent data values.

Suppose You Are Given a Graphical Portrayal of a Relative