Census and Sample method of collection of Data

Date : 30.4.2020
Sub  : Economics
Class : 11
Day   : 3
Period : 7
Time   : 12.20 pm to 01.00 pm

Learning Outcomes

• Meaning of Census Method
• Meaning of Sampling Method
• Difference betwee Census and Sampling Method

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Today we are going to start our 3rd chapter in Statistics ( Census and Sampling)

In my blog i will be giving you notes for the definition of both Census and Sampling and the difference between both Census and Sampling.

You are required to copy them in your copies and learn them for your examination

Please go through my notes given below

In Statistics universe or population simply refers to an aggregate of items to be studied for an investigation. 

In Statistics, the term population means the aggregate of all items about which we want to obtain information. Eg; there are 2000 students in a particular college. If an investigation relates to all 2000 students, then , 2000 would be taken as universe or population. Each unit of these 2000 is called Item.

CENSUS METHOD

Census method is that method in which data are collected covering every item of the universe or population relating to the problem under investigation. 

Eg If we want to know the population of India the government will have to have a census , where each and every individual in the country will have to be taken into consideration.

Census of India 2011 reveals that in term of size of population. India is the 2nd largest country in the world next to china. 

SAMPLE METHOD

Sample method is that method in which data is collected about the sample on a group of items taken from the population for an examination and conclusions are drawn on their bases .

Eg - From the population of India we want to know the number of males below the age of 40. This is called a Sample of the population

DIFFERENCE BETWEEN CENSUS AND SAMPLING METHODS

S.NO	BASIS	CENSUS METHOD	SAMPLING METHOD
1	Information	In this method, each and every unit of the universe is studied	In this method, only few units of the universe are selected and studied
2	Conclusion	Conclusion are drawn on the basis of whole universe	Conclusion are drawn on the basis of a Sample
3	Accuracy	High degree of accuracy is obtained	High degree of accuracy is not obtained
4	Time and Money	It is both time and money consuming. So it is costly method.	It is economical, as it saves both time and money
5	Suitability	Method is more suitable where scope of investigation is limited.	Method is more suitable where the area of enquiry is wide
6	Number of Enumerators	Requires a large number of enumerators	Sample can be taken out by quite smaller number of enumerators
7	Nature  of Items	Suitable where all items of universe are not homogeneous ( not same )	Is not suitable where units of the universe are heterogeneous (different )

Your assignment

Please learn the definition of both Census and Sample and also their differences.