Women were rst allowed to enter the boston marathon in 1972. the time (in minutes, rounded to the nearest minute) for each winning woman from 1972 to 2010 appears in table 1.table 1: problem 2.1year time year time year time1972 190 1985 154 1998 1431973 186 1986 145 1999 1431974 167 1987 146 2000 1461975 162 1988 145 2001 1441976 167 1989 144 2002 1411977 168 1990 145 2003 1451978 165 1991 144 2004 1441979 155 1992 144 2005 1451980 154 1993 145 2006 1441981 147 1994 142 2007 1491982 150 1995 145 2008 1451983 143 1996 147 2009 1521984 149 1997 146 2010 146(a) make a graph of winning times.(b) give a brief description of the pattern of boston marathon winning times over these years. have times stopped improving in recent years?