Task 01
The following table shows the breakdown of a population into categories of gender and age (frequencies are in thousands).
1. Differentiate primary and secondary data collection methods (six points should be given)
2. Mention three differences between probability and non-probability sampling methods
3. A researcher wants to construct a quota sample of 100 individuals which fully reflects the distribution of these two characteristics in the population. Calculate the numbers in each category of the quota sample
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