Question
Explain the sample method. Give its advantages.
Solution
As per sample method, we select a representative sample of a few individuals from the region and find out the estimate of the population characteristics. The average of the selected group of individuals is used as an 'estimate' of the average of individuals in the whole region.
Advantages:
(i) The cost of the survey would be smaller.
(ii) The collection of data, their tabulation and analysis would take much less time.
(iii) The magnitude of errors would be much
smaller.
