Question

Write Short Notes on the following:
Multiple Bar Diagram

Answer 1

Sometimes there are more than two sets of data to be compared in a bar graph. In that case, a multiple bar graph can be used. A multiple bar graph compares as many sets of data you want. The process for creating a multiple bar graph is just like creating any other bar graph, only you will have more colors to represent different sets of data.

To create a multiple bar graph:

Draw the horizontal $\left(x\right)$ and vertical $\left(y\right)$ axis.

Give the graph a title.

Label the horizontal $x$ axis.

Label the vertical $y$ axis.

Look at the range in data and decide how the units on the vertical axis $\left(y\right)$ should be labeled.

For each item on the horizontal $\left(x\right)$ axis, draw a vertical column to the appropriate value however many times as you have sets of data. For example, if you are looking at 3 days worth of data, you will have $3$ bars per item.

Choose three colors to represent each different data set. Make sure to label the data sets in a key alongside the graph.

Sometimes comparing data can also be done by comparing data sets across multiple different bar graphs.

The difference is the data is split versus all being compared in one graph. Either method allows you to analyze and compare the data being displayed.