The following data give birth rates (per 1000 population) for 20 selected states in 1998 (source: The World Almanac and Book of Facts 2000).
14.4 16.3 13.5 14.6 13.7 15.6 10.9 12.8 13.0 14.2
13.4 13.9 15.9 13.3 14.1 15.7 15.2 13.9 15.4 11.3
Construct a dotplot and interpret.