Statistical data can be presented in
Statistical data can be presented in three forms namely, tabular presentation, diagrammatic presentation and graphic presentation.
Line frequency graph is suitable for presenting
Line frequency graph is obtained from the frequency distribution of discrete variables. Length of the line represents the frequency of that variable.
Length is used to represent the data in a
Width and number of the bar are immaterial in case of bar diagrams. Bar diagram shows statistical data in terms of length of the bar.
Temporal classification is done on the basis of
When classification is done on the basis of time, the classification is known as temporal classification. Time may be in hours, days, weeks, months, years etc.
The process of presenting classified data in a suitable form is called
The objective of presentation of data is to present classified data visually, thus highlighting basic facts and relationships.
Simple bar diagram is effective in representing
Bar diagram comprises a group of equispaced and equiwidth rectangular bars for each class or category of data. Only one variable can be represented by the simple bar diagrams.
Data can be represented in
There are four methods of presentation of data. These are
i) Textual presentation
ii) Tabular presentation
iii) Diagrammatic presentation
iv) Graphic presentation.
The bar diagram showing an aggregate of values and its parts is called
Subdivided or component bar diagrams are used when various components of a variable are to be represented. In these diagrams we cannot only present the different values graphically but can also compare parts of one with another.
On the basis of presence and absence of an attribute, data are classified into
When on the basis presence and absence of an attribute, the data are classified into two classes, one possessing that attribute and the other not possessing that attribute, it is called two-fold classification.
Sub-divided bar diagrams presented graphically on percentage basis gives
Sub-divided bar diagrams presented graphically on percentage basis gives percentage bar diagrams. These diagrams are used to highlight the relative importance of the various component parts to the whole.