Which probability sampling method should be used to ensure representativeness across the whole country? A. docx from MANA 11 at Ajmer Institute Of Technology Ajmer. In stratified sampling, the population is divided into homogeneous subgroups called strata based on characteristics such as age, gender, or socioeconomic status. A stratified random sample is one obtained by dividing the population elements into mutually exclusive, non-overlapping groups of sample units called strata, then selecting a simple random sample from within each stratum (stratum is singular for strata). (a) Scenario: Randomly selecting 100 individuals from a list of known users of the product for a nationwide poll. However, it is not the same as SRS because not every possible sample of a certain size has an equal chance of being chosen (e. Jul 23, 2025 ยท Stratified Random Sampling ensures that the samples adequately represent the entire population. Select appropriate sampling methods based on population structure and accessibility. Simple Random Sampling. age, sex).

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