Bring out the distinction between sample survey and census. Describe the steps you would follow in collecting data though a sample survey. Prepare a small questionnaire for collection of income and expenditure levels of households.

Distinction Between Sample Survey and Census:

Sample survey and census are two methods used to collect data from a population for the purpose of statistical analysis. They have distinct characteristics and applications:

Sample Survey:

A sample survey involves collecting data from a subset (sample) of the entire population. The selected sample is representative of the population and is used to make inferences about the entire population. Sample surveys are conducted when it is impractical or too expensive to collect data from every individual in the population.

Advantages of Sample Survey:

• Cost-effective and efficient.
• Less time-consuming.
• Easier to manage and conduct.
• Often provides accurate and reliable results.

Limitations of Sample Survey:

• Sampling errors may occur.
• May not capture the entire population's characteristics.
• Requires careful sampling design to ensure representativeness.

Census:

A census involves collecting data from every individual or unit in the entire population. A census aims to provide a complete and accurate picture of the population, leaving ________ _________ _______ _____ ________.
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