An Education Statistics Organization Reported Recent Average Mathematics Achievement Scores For Eighth Graders In 50 Reg 1 (24.58 KiB) Viewed 74 times
An Education Statistics Organization Reported Recent Average Mathematics Achievement Scores For Eighth Graders In 50 Reg 2 (41.45 KiB) Viewed 74 times
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 285 (Type an integer or a decimal.) The sample mean is 282.76 (Type an integer or a decimal.) The sample standard deviation is 7.54 (Round to two decimal places as needed.) b) Write a brief summary of the performance of eighth graders across all the regions. The distribution of scores is skewed to the left. The center is around 285 (Type integers or decimals. Use ascending order.)
ar eig r.) Math Scores by Region Region Score Region Score 268 26 292 282 277 278 270 285 287 286 280 277 273 285 281 287 2 3 4 6 8 9 10 11 12 13 14 15 56789222222 16 17 18 19 20 21 23 24 Print 284 288 280 274 287 287 299 277 293 262 288 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 45 4 45 43 44 46 47 48 49 50 284 275 290 294 269 281 285 291 285 278 287 288 279 279 291 274 285 286 294 286 287 272 287 284 Done HW S - X
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