From NCAA.com€”the official Web site for NCAA sports€”we obtained the National Collegiate Athletic Association wrestling champions for the years 1984€“2008. They are displayed in the following table.

a. Determine the mode of the data.
b. Decide whether it would be appropriate to use either the mean or the median as a measure of center. Explain your answer.

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Year Champion Year Champion 1984 Iowa 1985 Iowa 1986 Iowa 1987 lowa St. 1988 Arizona St. 1989 Okłahoma S 2002 Minnesota 1990 Oklahoma St. 2003 Oklahoma St. 1991 owa 1992 Iowa 993 Iowa 1994 Oklahoma S 2007 Minnesota 1995 Iowa 1996 owa 1997 Iowa 1998 Iowa 1999 Iowa 2000 Iowa 2001 Minnesot:a 2004 Oklahoma St. 2005 Oklahoma St. 2006 Oklahoma St. 2008 Iowa