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MMLU / The relation between studying time (in hours) and grade on a final exam (0-100)…

Problem

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question

The relation between studying time (in hours) and grade on a final exam (0-100) in a random sample of students in math class was found to be Grade = 50.25 + 10.2 (h) How will a student’s grade be affected if she studies for two hours?

choices

  1. Her grade will go up by 40.05 points.
  2. Her grade will go up by 20.4 points.
  3. Her grade will remain unchanged.
  4. Her grade will down by 10.2 points.

subject

high_school_statistics

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Source and history

Official source

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