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What is For a survey a village is divided into 5 lanes then each lane is sapled randomly is an example is - and explain in detail?
- systematic random sample is done by picking every 5th or 10th unit at regular intervals. - by this method ,each unit in the sampling frame would have the sane chance of being selected, but the number of possible samples is greatly reduced. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:850