Question

Give reasons or explain.

1) There are many types of diagrams.

2) Histogram is not a diagram.

Answer 1

1. A diagram is a two-dimensional geometric figure that represents information in a visual form. Statistical diagrams include various types of diagrams such as pie diagrams, simple bar diagrams, percentage bar diagrams, multiple bar diagrams and deviation bar diagrams. These diagrams help us to easily interpret the given data.

2. A histogram is a visual representation of data using a set of vertical rectangles representing class frequencies. It is a graph and not a diagram. This is because it is a two-dimensional graph of frequency distribution that emphasises both the lengths and widths of the rectangles. Diagram, on the other hand, emphasises the length of the bars and not on the width. Histograms are also used to represent continuous frequency distributions. They are more technical and accurate in nature compared to diagrams.