Chapter 2, Exercise 2: pg 27, table 2.2.2

I have added the second exercise, which corresponds to the table 2.2.2 on page 27 in the book. Get the R syntax and comments from the companion sites.google page or simply click "second exercise" in the first sentence of this paragraph.This exercise will again show you how to use R for algebra computations, and then how r makes statistical computation easy for you. The data set for this file is C0202DT (On your Book Disk). Pay particular attention on the order of operations in creating the correlation coefficient manually.