Is there a difference in the variation of the yields of different types of investments? The file CD Rate contains the yields for one-year certificates of deposit (CDs) and five-year CDs for 22 banks in the United States, as of March 12, 2014.

Bank	One-Year	Five-Year
American	0.20	1.10
Bank of Internet USA	0.55	1.35
Barclays	0.80	2.15
Citizens Trust	0.20	0.60
Colorado federal	1.00	1.50
Doral	0.95	1.50
Discover	0.95	1.65
E-Loan	0.91	1.51
GE Capital	1.05	2.25
GE Capital Retail	1.05	2.05
Giantbank.com	0.85	1.38
Home Savings	0.98	1.50
Heritage Bank	0.23	0.93
Intervest National	0.68	1.94
Lone Star	0.60	1.41
National Republic Bank of Chicago	0.90	1.41
Pentagon Federal Credit Union	0.80	1.76
Salem Five	0.25	1.15
State Farm	0.30	2.05
TAB Bank	0.65	1.51
USAA	0.71	1.06
VirtualBank	1.01	2.02
a. For one-year and five-year CDs, separately compute the variance, standard deviation, range, and coefficient of variation. b. Based on the results of (a), do one-year CDs or five-year CDs have more variation in the yields offered? Explain.