AP Statistics Quiz
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COLLECTING DATA
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A wildlife agency investigates the research question: "What is the mean weight of adult trout in Lake Orion?" Biologists used nets at two easily accessible shoreline locations on a single afternoon and weighed 60 adult trout; the sample mean weight was 1.8 kg. They concluded that the mean weight of adult trout in Lake Orion is about 1.8 kg. Which statement explains whether the conclusion is valid?
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