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Collection of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsCollection of Data4 Marks
Question
What are the objectives of classification of data?
✓

Answer

The objectives of classification of data are:
  1. To make the data simple and brief: The main objective of classification is to condense the large data to make them easily understood. For example, if there are 100 students in a class then their marks can be put in the following way:
Marks Obtained (Out of 100)
No. of students
20-40
15
40-60
25
60-80
50
80-100
10
Total
100
  1. Helps in comparison. It facilitates comparison. Ungrouped and shapeless data cannot be compared. It can be possible with the help of classification. For example, the figures of weights of students of two classes are given below:
Wieghts in kgs.
Class A
Class B
20-30
5
10
30-40
10
12
40-50
20
15
50-60
15
13
60-70
 
 
Total
50
50
  1. To reveal the basic tabulation: Classification provides basis for tabulation. No tabulation is possible without classification.
  2. To bring out points of similarities and dissimilarities: Classification reveals clearly the points of similarities and dissimilarities in the statistical data.
For example, married and unmarried or employed and unemployed etc.

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