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The weekly wages (in ₹) 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, 810 – 820 and so on

Solution:

A frequency distribution shows the frequency of repeated items in a graphical form or tabular form.

The representation of data by frequency distribution table using tally marks is as follows:

Class Intervals Tally Marks Frequency
800–810 ||| 3
810–820 || 2
820–830 | 1
830–840 |||||||| 9
840–850 |||| 5
850–860 | 1
860–870 ||| 3
870–880 | 1
880–890 | 1
890–900 |||| 4
Total 30

☛ Check: NCERT Solutions for Class 8 Maths Chapter 5

Video Solution:

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, 810 – 820 and so on

NCERT Solutions for Class 8 Maths Chapter 5 Exercise 5.1 Question 3

Summary:

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, a frequency table with intervals as 800 – 810, 810 – 820 and so on has been shown in the solution.

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