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MMLU / For their first exam, students in an AP Statistics class studied an average of 4…

Problem

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question

For their first exam, students in an AP Statistics class studied an average of 4 hours with a standard deviation of 1 hour. Almost everyone did poorly on the exam, and so for the second exam every student studied 10 hours. What is the correlation between the numbers of hours students studied for each exam?

choices

  1. -1
  2. 0
  3. 0.4
  4. 1

subject

high_school_statistics

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