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SCENARIO 7-6
Online customer service is a key element to successful online retailing.According to a marketing survey,37.5% of online customers take advantage of the online customer service.Random samples of 200 customers are selected.
-Referring to Scenario 7-6,the population mean of all possible sample proportions is .
Amphibians
Cold-blooded vertebrates that include frogs, toads, salamanders, and newts, known for their ability to live both in water and on land during different life stages.
Atmospheric CO₂
The concentration of carbon dioxide in Earth's atmosphere, a crucial factor influencing climate change and global temperatures through the greenhouse effect.
Keystone Species
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Keystone Species
An organism that other species in an ecosystem significantly rely on, and if it were eliminated, the ecosystem would undergo major changes.
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