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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.

**☛ Related Questions:**

- For which of these would you use a histogram to show the data? (a) The number of letters for different areas in a postman’s bag. (b) The height of competitors in an athletics meet. (c) The number of cassettes produced by 5 companies. (d) The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station. Give reasons for each.
- The shoppers who come to a departmental store are marked as: man (M), woman (W), boy (B) or girl (G). The following list gives the shoppers who came during the first hour in the morning:
- Draw a histogram for the frequency table made for the data in Question 3, and answer the following questions. (i) Which group has the maximum number of workers? (ii) How many workers earn Rs 850 and more? (iii) How many workers earn less than Rs 850?
- The number of hours for which students of a particular class watched television during holidays is shown through the given graph. Answer the following: (i) For how many hours did the maximum number of students watch T.V.?

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