Diagrams and Graphs of Statistical Data

We have discussed the techniques of classification and tabulation that help us organize the collected data in a meaningful fashion. However, this way of presenting statistical data does not always prove to be interesting to a layman. Too many figures are often confusing and fail to convey the message effectively.

One of the most effective and interesting alternative ways to present statistical data is through diagrams and graphs. There are several ways in which statistical data may be displayed pictorially, such as different types of graphs and diagrams. The most commonly used diagrams and graphs shall be discussed in subsequent posts, as listed below.

Types of Diagrams/Charts

1. Simple Bar Chart
2. Multiple Bar Chart or Cluster Chart
3. Stacked Bar Chart or Sub-Divided Bar Chart or Component Bar Chart
• Simple Component Bar Chart
• Percentage Component Bar Chart
• Sub-Divided Rectangular Bar Chart
• Pie Chart

Types of Diagrams/Charts

1. Histogram
2. Frequency Curve and Polygon
3. Lorenz Curve
4. Historigram