Question
Explain the reading and interpretation of bar graphs.
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Answer
A bar graph is a diagram consisting of a sequence of vertical or horizontal bars or rectangles, each of which represents an equal interval of the values of a variable, and has the height proportional to the quantities of the phenomenon under consideration in that interval. A bar graph may also be used to illustrate discrete data, in which case each bar represents a distinct circumstance.
While drawing a bar graph, we keep in mind that:
While drawing a bar graph, we keep in mind that:
- The width of the bars should be uniform throughout.
- The gap between any two bars should be uniform throughout.
- Bars may be either horizontal or vertical.
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