Construct a frequency distribution for the given data set using 6 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency?
526
175
189
105
125
538
419
65
289
297
417
73
80
206
321
430
191
82
30
409
176
179
347
210
522
109
359
330
507