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We are interested in the relationship between the number of pages in an economics textbook and the college bookstore price. A sample of six economics textbooks is obtained from the bookstore.
                                                      Number of Pages          Selling Price
                                       Title                (X)                 (Y)
                                        ACO                 400                 $ 44 
                                        BCO                 600                 $ 47
                                        CCO                 500                 $ 48
                                        DCO                 600                 $ 48
                                        ECO                 400                 $ 43
                                        FCO                 500                 $ 46
Determine the coefficient of correlation.
  • (A) .00
  • (B) -0.78
  • (D) 0.9
  • (E) 1.29
  • (C) .86
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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