Long Answer Type Questions (6 Marks each)
Q.1. What is meant by tabulation? Discuss its objectives in brief.
Answers
Answer:
Tabulation Meaning:
Tabulation is a systematic & logical presentation of numeric data in rows and columns to facilitate comparison and statistical analysis. It facilitates comparison by bringing related information close to each other and helps in further statistical analysis and interpretation.
In other words, the method of placing organised data into a tabular form is called as tabulation. It may be complex, double or simple depending upon the nature of categorisation.
Also Check: Tabular Presentation of Data
5 Major Objectives Of Tabulation:
(1) To Simplify the Complex Data
It reduces the bulk of information, i.e. raw data in a simplified and meaningful form so that it could be easily by a common man in less time.
(2) To Bring Out Essential Features of the Data
It brings out the chief/main characteristics of data.
It presents facts clearly and precisely without textual explanation.
(3) To Facilitate Comparison
Presentation of data in row & column is helpful in simultaneous detailed comparison on the basis of several parameters.
(4) To Facilitate Statistical Analysis
Tables serve as the best source of organised data for further statistical analysis.
The task of computing average, dispersion, correlation, etc. becomes easier if data is presented in the form of a table.
(5) Saving of Space
A table presents facts in a better way than the textual form.
It saves space without sacrificing the quality and quantity of data.
Answer:
1. In tabulation the data are presented systematically in columns and rows in a concise form. Thus, data becomes more meaningful and lot of time is saved in its study and understanding.
2. When the data are arranged in tables with titles and table number, they can be easily identified and made use of a source reference for future studies.
3. Tabulation of data shows the trend of the information under study and depicts the patterns with in the figures which cannot be understood in a descriptive form of presentation.
4. It is only after tabulation that data becomes fit for statistical processing.