Identify the incorrect pair of statement given in Column I and Column II: Column I Column II A. Census Method i) Data collected from each and every element of the household.
B. Sampling Method ii) Some representative items of a population are selected for analysis.
C. Primary Data iii) Data collected from books written by economists. D. Secondary Data iv) Data collected from published or unpublished source
Answers
Answer:
In statistics, quality assurance, and survey methodology, sampling is the selection of a subset (a statistical sample) of individuals from within a statistical population to estimate characteristics of the whole population. Statisticians attempt for the samples to represent the population in question. Two advantages of sampling are lower cost and faster data collection than measuring the entire population.
Each observation measures one or more properties (such as weight, location, colour) of observable bodies distinguished as independent objects or individuals. In survey sampling, weights can be applied to the data to adjust for the sample design, particularly in stratified sampling.[1] Results from probability theory and statistical theory are employed to guide the practice. In business and medical research, sampling is widely used for gathering information about a population.[2] Acceptance sampling is used to determine if a production lot of material meets the governing specifications.