There are various types of graphs that are used to represent the numbers and illustrate them visually. The bar graph is one of the types of graphs that are used for expressing the data with the help of bars that are rectangular in shape. The length of the rectangular bar is parallel to the value to be represented. In our everyday life, you may have observed various graphs representing the ups and downs of the industry, the growth of stocks, the inclination of a covid virus, and so on, many of these are represented by the help of a bar graph.
The bar graph consists of the horizontal and vertical axis which are denoted by the help of symbols such as ‘X’ and ‘Y’. in this article, we will try to cover some basic aspects of the bar graph such as types of bar graphs, properties and carry out a brief analysis about it.
Different Types of Bar Graph
As mentioned above, a bar graph is one of the types of graphs that is used for expressing the data with the help of bars that are rectangular in shape. The following points mentioned below analyses the different types of bar graphs in a detailed manner:
- Whenever, the given data is expressed in a vertical manner, using the help of bars that are rectangular in shape can be defined as the vertical bar graphs. These bars are drawn on the ‘x-axis and the height is written in the ‘y’ axis.
- Whenever, the given data is expressed in a horizontal way, using the help of bars that are rectangular in shape can be defined as the horizontal bar graphs.
- The composite bar graph is also known as the stacked bar graph. This graph helps in the division of various different parts.
Some Properties of a Bar Graph
We have already discussed the type of graph, there are some distinctive properties of bar graph which helps differentiate it from other types of graphs. The following points mentioned below analyses the properties of a bar graph:
- The bars of rectangular shape are always drawn vertically or horizontally.
- The length and width or breadth of the rectangular shapes must be equal and have some suitable space in order to distinguish the numbers and ranges.
- The bars of the bar graph must be always situated in the same common base. This base can be represented with the help of the number 0.
- The height of the bar must be exactly the same present in the data. You can only change the units. For example, you can write 1 cm = 10 km.
If you want to learn about various types of graphs like bar graphs and histograms, you may visit Cuemath and learn math in a fun and interactive way.
Histogram and Its Properties
The graph which can be defined as the graphical representation of the groups and data where every range is corresponding to the vertical bar is the histogram. The axis which is horizontally placed in the graph is defined as the horizontal axis which basically represents the range of numbers. Similarly, the axis which is vertically placed in the graph is defined as the vertical axis which signifies the quantity of the data which is present in each data.
Usually, the horizontal axis is known as X-axis and the vertical axis is represented by the letter ‘Y’. Some examples of this representation are as follows: 60 – 75 , 70 – 75, 80 – 85, 85 – 90. These numbers are known as the ranges whereas numbers like 3, 5, 6, 8 represent the number or frequency. Note: In the above example, ranges are placed in the vertical axis and frequency in the horizontal axis.
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