1. Construct a time series plot of the data.
2. Describe any patterns you see.

1. We indicate the years 1990–2014 on the horizontal axis of the time series plot (Figure 48). Then, for each year, we plot the murder rate per 100,000 residents. Finally, we join the points using line segments.
   Table 2.85: TABLE 37 Murder rate in New York City, 1990–2014

   Year	Rate	Year	Rate	Year	Rate
   1990	14.5	1999	5	2008	4.3
   1991	14.2	2000	5	2009	4
   1992	13.2	2001	5	2010	4.5
   1993	13.3	2002	4.8	2011	3.9
   1994	11.1	2003	4.9	2012	3.5
   1995	8.5	2004	4.6	2013	3
   1996	7.4	2005	4.5	2014	2.7
   1997	6	2006	4.8
   1998	5.1	2007	4.2

   

   Figure 2.48: FIGURE 48 Time series plot. Murder rate in New York City, 1990–2014.
2. Note that the murder rate fell quickly from 1993 to 1998 and then tended to flatten out until 2010, when it began a slow descent until 2014. In the Step-by-Step Technology Guide, we illustrate how to construct this time series graph using technology.

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