Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

Exercise 8

Critical Thinking Suppose you and a friend each take different random samples of data pairs ( x, y ) from the same population. Assume the samples are the size. Based on your samples. You compute r = 0.83. Based on her sample, your friend computes r = 0.79. Is your friend's value for r wrong Explain.