Question:
The weekly wages (in Rs) 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, 835, 836, 878, 840, 868, 890, 806, 840. Using tally marks, make a frequency table with intervals as 800–810, and so on.
Solution:
Interval |
Tally marks |
Frequency |
800–810 |
|
|
810–820 |
|
|
820–830 |
|
|
830–840 |
|
|
840–850 |
|
|
850–860 |
|
|
860–870 |
|
|
870–880 |
|
|
880–890 |
|
|