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N2007 P2 Q5

N2007 P2 Q5

Junior College 2
5 marks
  1. Give a real-life example of a situation in which quota sampling could be used. Explain why quota sampling would be appropriate in this situation, and describe briefly any disadvantage that quota sampling has.[4]
  2. Explain briefly whether it would be possible to use stratified sampling in the situation you have described in part (i).[1]

Solution:

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Answer:Example: shopping-centre survey with age quotas; quick but vulnerable to selection bias. Stratified random sampling requires a sampling frame.

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