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प्रश्न
State any three merits of stratified random sampling
उत्तर
Merits:
(a) A random stratified sample is superior to a sample random sample because it ensures representation of all groups and thus it is more representative of the population which is being sampled.
(b) A stratified random sample can be kept small in size without losing its accuracy
(c) it is easy to administer, if the population under study is sub-divided
(d) It reduces the time and expenses in dividing the strata into geographical divisions, since the government itself had the geographical areas.
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