Solutions Statistics

For each of 10 popular prescriptions drugs, file XR15042 lists the retail price (in U.S. dollars) fo

Question: For each of 10 popular prescriptions drugs, file XR15042 lists the retail price (in U.S. dollars) for the drug in several different countries, including the United States, Canada, Great Britain, and Australia. Determine and interpret the coefficients of correlation and determination for U.S. prices versus Canadian prices.

File XR15042

Drug	US Price	Canada Price	Great Britain Price	Australia Price
Prilosec	3.31	1.47	1.67	1.29
Prozac	2.27	1.07	1.08	0.82
Lipitor	2.54	1.34	1.67	1.32
Prevacid	3.13	1.34	0.82	0.83
Epogen	23.40	21.44	27.48	29.24
Zocor	3.16	1.47	1.73	1.75
Zoloft	1.98	1.07	0.95	0.84
Zyprexa	5.27	3.39	2.86	2.63
Claritin	1.96	1.11	0.41	0.48
Paxil	2.22	1.13	1.70	0.82