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Sampling techniques

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If you had to randomly choose 20 pages from a phone book what technique would be most suitable and why?

1.simple random sampling
2.stratified random sampling
3.systematic random sampling
4.cluster random sampling

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ANSWER: 2. Stratified random sampling.
In phone book the entries are given some alphabetically individual/zone wise/area wise/Occupation ...

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Amrit Lal Ahuja, PhD (IP)
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  • BEng, Allahabad University, India
  • MSc , Pune University, India
  • PhD (IP), Pune University, India
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