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, 840Using tally marks make a frequency table with intervals as 800–810, 810–820 and so on.

Answer 1

We can see minimum value in the given data is `804` and the maximum value is `898`.
So, the class interval can be, `800-810,810-820,820-830,830-840,840-850,850-860,860-870,870-880,880-890,890-900`.
Now, we can map given weekly wages according to their class interval.
Please refer to video for complete frequency table using tally marks.