data
261 |
288 |
287 |
283 |
332 |
298 |
323 |
271 |
247 |
296 |
304 |
330 |
306 |
324 |
236 |
256 |
313 |
305 |
309 |
315 |
327 |
244 |
338 |
311 |
288 |
328 |
310 |
279 |
360 |
307 |
290 |
307 |
318 |
296 |
341 |
307 |
288 |
328 |
318 |
284 |
333 |
299 |
289 |
285 |
320 |
299 |
261 |
303 |
297 |
291 |
333 |
288 |
266 |
277 |
299 |
295 |
321 |
a)
width = 30
b)
class limit lower | upper | lower boundary | upper | Mid | f | relative freq. | cumulative |
230 | 259 | 229.5 | 259.5 | 244.5 | 4 | 0.07 | 0.07 |
260 | 289 | 259.5 | 289.5 | 274.5 | 15 | 0.26 | 0.33 |
290 | 319 | 289.5 | 319.5 | 304.5 | 24 | 0.42 | 0.75 |
320 | 349 | 319.5 | 349.5 | 334.5 | 13 | 0.23 | 0.98 |
350 | 379 | 349.5 | 379.5 | 364.5 | 1 | 0.02 | 1.00 |
57 | 1 |
c)
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