Samples of water are taken from the local river in town A over a one-week period, at random times and locations, both downstream and upstream, to establish the effect of activities in the town on the acidity of the river. The population in this scenario is:[Fill in the blank]单项选择题

题目图片
A

The people living in town A

B

The local river in town A

C

All water collected from the river in town A

D

All activities in town A

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When speaking about "populations" with reference to sampling and statistics, what is the most accurate description of what we are speaking about?

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