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When comprehensive information is required. It may also be the better option if the characteristic of interest is important but very rare. In such a case, a sample may give an underestimate.
When comprehensive information is required. It may also be the better option if the characteristic of interest is important but very rare. In such a case, a sample may give an underestimate.
When comprehensive information is required. It may also be the better option if the characteristic of interest is important but very rare. In such a case, a sample may give an underestimate.
When comprehensive information is required. It may also be the better option if the characteristic of interest is important but very rare. In such a case, a sample may give an underestimate.
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When is census necessary instead of sampling?
census is conducted for group data so if it is a sampling data is taken it would lead to lot of non sampling errors
Why is a sample usually preferred over a census?
Less time and less cost for a sample.
What are the differences between census and sampling?
A census would get data from 100% of the population (or at least close to 100%). Sampling would be to get data from some of the population (much less than 100%).
Why is a census preferred to a sample?
Sampling can be more accurate than a census as there is greater control of interviewers and less chances of mistakes being made as the data is collated
Is questionnaire probability sampling technique?
A questionnaire has little to do with sampling technique. Sampling technique is to do with who gets the questionnaire and that can be any sampling technique: the questionnaire can be sent to everyone (census), to a random sample, stratified random samples, to random samples in clusters, by quota or convenience. Or a pile of questionnaires can be left for respondents to pick up - self-selection.
