The Kentucky Derby winning horses and winning times from 1951 - 2010 are given below. Winning times were officially recorded to the nearest two-tenths of a second until 2001.Since 2001 the winning times were officially recorded to the nearest hundredth of a second.

Date	Name	Time (seconds)		Date	Name	Time (seconds)
1951	Count Turf	122.6		1981	Pleasant Colony	122.0
1952	Hill Gail	121.6		1982	Gato Del Sol	122.4
1953	Dark Star	122.0		1983	Sunny's Halo	122.2
1954	Determine	123.0		1984	Swale	122.4
1955	Swaps	121.8		1985	Spend a Buck	120.2
1956	Needles	123.4		1986	Ferdinand	122.8
1957	Iron Liege	122.2		1987	Alysheba	123.4
1958	Tim Tam	125.0		1988	Winning Colors	122.2
1959	Tomy Lee	122.2		1989	Sunday Silence	125.0
1960	Venetian Way	122.4		1990	Unbridled	122.0
1961	Carry Back	124.0		1991	Strike the Gold	123.0
1962	Decidedly	120.4		1992	Lil E. Tee	123.0
1963	Chateaugay	121.8		1993	Sea Hero	122.4
1964	Northern Dancer	120.0		1994	Go For Gin	123.6
1965	Lucky Debonair	121.2		1995	Thunder Gulch	121.2
1966	Kauai King	122.0		1996	Grindstone	121.0
1967	Proud Clarion	120.6		1997	Silver Charm	122.4
1968	Forward Pass	122.2		1998	Real Quiet	124.2
1969	Majestic Prince	121.8		1999	Charismatic	123.2
1970	Dust Commander	123.4		2000	Fusaichi Pegasus	121.0
1971	Canonero II	123.2		2001	Monarchos	119.97
1972	Riva Ridge	121.8		2002	War Emblem	121.1
1973	Secretariat	119.4		2003	Funny Cide	121.19
1974	Cannonade	124.0		2004	Smarty Jones	124.06
1975	Foolish Pleasure	122.0		2005	Giacomo	122.75
1976	Bold Forbes	121.6		2006	Barbaro	121.36
1977	Seattle Slew	122.2		2007	Street Sense	122.17
1978	Affirmed	121.2		2008	Big Brown	121.82
1979	Spectacular Bid	122.2		2009	Mine That Bird	122.66
1980	Genuine Risk	122.0		2010	Super Saver	124.04

1. Use a calculator or a computer to calculate the mean winning time and the standard deviation in the

winning times in the data table above.