Final answer:
Stratified sampling is the most representative sampling method because it ensures that all subgroups within the population are adequately represented in the sample, increasing the sample's validity.
Step-by-step explanation:
The sampling method that generates a sample with the highest representativeness is stratified sampling. Stratified sampling involves dividing the population into subgroups or strata that share similar characteristics, and then taking a random sample from each of these strata. This method ensures that all segments of the population are adequately represented in the sample, which increases the representativeness and validity of the results. Simple random sampling also has a high level of representativeness but may not always capture the diversity within subgroups as effectively as stratified sampling does. On the other hand, nonprobability sampling and non-random sampling, such as convenience sampling, often produce biased data as they do not give all individuals in the population an equal chance of being selected.