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Sampling methods-II
What is systematic sampling?
Systematic sampling selects every k-th element from a population list after a random start. The sampling interval k is determined by dividing the population size by the desired sample size.
What is the primary disadvantage of convenience sampling?
Results may be biased and not representative of population.
How is the sampling interval calculated in systematic sampling?
The sampling interval (k) is calculated as k = N/n, where N is the population size and n is the required sample size.
What is random sampling error?
Difference between sample estimate and true population value.
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