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The Professor of a Business Statistics Class Wanted to Find

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The professor of a business statistics class wanted to find out the mean amount of time per week her students spent studying for the class.Among the 50 students in her class,20% were freshmen,50% were sophomores and 30% were juniors.She decided to select 2 students randomly from the freshmen,5 randomly from the sophomores and 3 randomly from the juniors.This is an example of a systematic sample.


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Established methods for conducting operations or tasks within an organization, designed to achieve consistency and efficiency.

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Documents that present information in a structured format for analysis and decision-making.

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Communications shared through online platforms that allow users to create, share, or exchange content.

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