1. The following data give the 2007 gross domestic product (GDP) in billions of dollars for all 50 states. The data are entered in alphabetic order by state (Bureau of Economic Analysis, June 2005). 166 45 247 95 1813 236 216 60 735 397 62 51 610 246 129 117 154 216 48 269 352 382 255 89 229 34 80 127 57 465 76 1103 399 28 466 139 158 531 47 153 34 244 1142 106 25 383 311 58 232 32 a. Calculate the mean and median for these data. Are these values of the mean and the median sample statistics or population parameters? Explain. Do these data have a mode? Explain. b.