Finish times (to the nearest hour) for 59 dogsled teams are shown below. Draw a histogram. Use five classes.
261
269
236
244
280
296
284
297
290
290
247
256
338
360
341
333
261
267
287
296
313
311
309
309
299
303
277
283
304
305
286
290
286
287
297
299
332
330
309
326
309
326
285
291
295
298
306
315
310
318
318
320
333
321
323
324
327
239
358
The frequency table for the above data is given below.
Class Limits
Boundaries
Midpoint
Freq.
Relative Freq.
Cumulative Freq.
236 260
235.5 260.5
248
5
0.08
5
261 285
260.5 285.5
273
9
0.15
14
286 310
285.5 310.5
298
25
0.42
39
311 335
310.5 335.5
323
16
0.27
55
336 360
335.5 360.5
348
4
0.07
59
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