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Question
Construct a frequency table with equal class intervals from the following data on the monthly
wages (in rupees) of 28 laborers working in a factory, taking one of the class intervals as
210-230 (230 not included):
220, 268, 258, 242, 210, 268, 272, 242, 311, 290, 300, 320, 319, 304, 302, 318, 306, 292,
254, 278, 210, 240, 280, 316, 306, 215, 256, 236.
Solution
| Monthly wages (in rupees) |
Tally marks | Frequency |
| 210-230 | |||| | 4 |
| 230-250 | |||| | 4 |
| 250-270 | ||||| | 5 |
| 270-290 | ||| | 3 |
| 290-310 | ||||| || | 7 |
| 310-330 | ||||| | 5 |
| Total = 28 |
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