Mathematics, 14.05.2021 19:50, ianim207

Researchers conduct a study to evaluate the level of pollution present in a river. They selected several locations along the river and then take a sample of water from each location. What is the population under study?

A. The water in the river
B. River water in the county where researchers are working
C. Water in a lake fed by the river
D. The water collected by researchers

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Researchers conduct a study to evaluate the level of pollution present in a river. They selected sev...