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The monthly wages of 30 workers in a factory are given below:
830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 836, 878,840, 868, 890, 806, 840, 890.
Represent the data in the form of a frequency distribution with class size 10.
Given:
The monthly wages of 30 workers in a factory are:
830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 836, 878,840, 868, 890, 806, 840, 890.
To do:
We have to represent the data in the form of a frequency distribution with class size 10.
Solution:
Highest wage $= Rs.\ 890$
Lowest wage $= Rs.\ 804$
Range $= Rs.\ 890 - 804$
$=Rs.\ 86$
The required frequency distribution is:
Monthly wages (in Rs.) | Tally marks | Number of workers |
800-810 | ||| | 3 |
810-820 | || | 2 |
820-830 | | | 1 |
830-840 | 8 | |
840-850 | 5 | |
850-860 | | | 1 |
860-870 | ||| | 3 |
870-880 | | | 1 |
880-890 | | | 1 |
890-900 | 5 | |
Total | 30 |
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