Another researcher is planning a different survey of families,this time,all from Northumberland.Using census lists and details of the major towns in Northumberland,the sampling procedure is to obtain a random sample of families from each of the major towns and cities in the county.This type of study will give comparative information which a simple random study cannot?

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This approach, known as stratified sampling, allows for comparisons across different strata (in this case, major towns and cities within Northumberland) by ensuring representation from each, which a simple random sample might not achieve if it disproportionately selects from certain areas.

Another Researcher Is Planning a Different Survey of Families,this Time,all