devarshi-dt-logo

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