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A large sample of men, aged 48 was studied for 18 years. For unmarried men, approximately 70% were alive at age 65. For married men 90% were alive at 65%. Is this a sample or population?
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A large sample of men, aged 48 was studied for 18 years. For unmarried men, approximately 70% were alive at age 65. For married men 90% were alive at 65%. Is this a sample or population?

User Lincolnk
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It would be a sample. The conclusion is, marriage is associated with longer life, but this was just taken from a sample, and it doesn’t represent the full population.
User Strubbly
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