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A researcher wants to investigate the relationships between the use of drugs and study results of university students.He would like to generalize the results to the population.Which kind of sample could the researcher best use?
Middle Ages
A period in European history from the 5th to the 15th century, marked by the decline of the Roman Empire and the rise of feudalism.
Air Conditioning
A system or process for controlling the temperature and sometimes the humidity and purity of the air in a building or vehicle.
Carbon Monoxide
A colorless, odorless, and toxic gas produced by the incomplete combustion of carbon-containing materials.
Storm-Water Systems
Infrastructure designed to manage and redirect rainwater runoff to prevent flooding and water pollution.
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