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A class has had two midterms, both of which showed an average score of 50 points (out of 70) and a SD of 8. The correlation between the scores was .75. Here, X = score on the first exam and Y = score on the second exam. The scatter plot is football shaped. The RMSE for the regression is closest to:
  • .66
  • 8
  • 5.3
  • 4
  • 2
  • *****
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    Carlos Rodriguez <carlos@math.albany.edu>
    This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
    Last modified: Wed May 13 12:29:11 EDT 1998