Asurvey is taken to figure out the average temperature across all cities in the united states on a particular day. in 10 randomly chosen states, 40 cities are chosen to record the temperature. which sampling method describes this situation?

Stratified Random Sampling

Stratified random sampling is a sampling technique that is used when clearly identifiable subgroups or subpopulations can be distinguished in the population. As shwon in this specific case of the survey about te average temperature, where a group of cities is chosen.

Through this, the selection of the elements that will form part of the sample is made separately in groups (called strata), and within each stratum a simple random sample is drawn, without leaving any stratum without sampling.

where are the graphs?