Statistics Census & Sample Method of Collection of Data | Economics | Class 11
Aasoka presents a video that explains:
Census and Sample Method of Collection of Data
Concept of Population or Universe
Methods of Statistical Investigation
Features of a Sample
Methods of Sampling
Reliability of Sampling Methods
Comparison between Census and Sampling
Statistical Errors
Non- Sampling Errors
Census Method
• Data related to investigation is collected from each and every item of the population.
• Merits
• Highly accurate and reliable
• Very less chances of being biased
• Enables detailed and extensive study
• Different aspects and characteristics of the population can be studied
• Suitable for investigation of a heterogeneous population
• Demerits
• Requires a lot of manpower
• Very expensive
• Very lengthy and tedious process
• Not suitable for a large population
• Not suitable for population which is easily perishable
Sampling Method
• Methods of Sampling
Random Sampling
Purposive Sampling
Stratified Sampling
Systematic Sampling
Quota Sampling
Convenient Sampling
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