Simple Bar and Column Charts

One way in which data will be displayed on GMAT integrated reasoning question type is bar chart. To be specific, a graph with horizontal bars is called bar chart and a graph with vertical bars is called a column chart. However, we will use the term bar charts only whatever be the orientation of bars. When the bars are horizontal, each bar representa a category where order is not important. When the chart has a particular order (like days or months), vertical bars are used.

Example: Ice-Cream sales of different flavors on a particular day (say Monday). The order of flavors is not important here.


Example: Total Ice-Cream sales on different days.


Clustered Column Chart

This type of chart is used to compare values across categories when the order of categories is not important. For example, suppose there are two divisions of ice-cream shop and sales comparision is required. It doesn't matter whether we place division 1 before division 2 or after.


Stacked Column Chart

This type of chart is used to compare the contribution of each value to the total across categories. To calculate individual contribution, subtract the lower value from the upper value of that category.