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An education statistics organization reported recent average mathematics achievement scores for eighth graders in 50 regions. Complete parts a through c below. Click the icon to view the math achievement scores organized by region. a) Find the median, the sample mean, and the sample standard deviation of these regional averages. The median is (Type an integer or a decimal.) >The sample mean is (Type an integer or a decimal.) The sample standard deviation is (Round to two decimal places as needed.) b) Write a brief summary of the performance of eighth graders across all the regions. The center is around The distribution of scores is (Type integers or decimals. Use ascending order)
Da cel nt sar Feig er.) Math Scores by Region Region Score Region Score 1 269 26 291 284 27 284 275 28 272 278 234567 8 9 10 11 12 13 14 15 16 17 82222222 18 19 20 21 23 24 25 Print 268 287 288 284 278 278 273 288 281 29 30 31 32 33 34 35 36 37 38 39 288 284 287 277 271 288 287 297 46 47 48 49 50 278 292 263 286 40 41 2 43 44 45 42 292 293 268 285 286 294 284 277 283 290 278 278 292 275 289 284 293 288 287 272 290 287 Done X ts Points region Cle