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**NCERT solutions for Class 8 Maths Data Handling Download as PDF**

## NCERT Solutions for Class 8 Maths Data Handling

**Class –VIII Mathematics (Ex. 5.1)**

**NCERT SOLUTION**

**1. 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 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 reason for each.**

**Ans. **Since, Histogram is a graphical representation of data, if data represented in manner of class-interval.

Therefore, for case (b) and (d), we would use a histogram to show the data, because in these cases, data can be divided into class-intervals.

In case (b), a group of competitions having different heights in an athletics meet.

In case (d), the number of passengers boarding trains in an interval of one hour at a station.

NCERT Solutions for Class 8 Maths Exercise 5.1

**2. 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.**

**W WW G B W W M G G M M W WWW G B M W B G G M W W M M W WW M W B W G M W WWW G W M M W M W G W M G W M M B G G W.**

**Make a frequency distribution table using tally marks. Draw a bar graph to illustrate it.**

**Ans. **The frequency distribution table is as follows:

The illustration of data by bar-graph is as follows:

NCERT Solutions for Class 8 Maths Exercise 5.1

**3. 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.**

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

NCERT Solutions for Class 8 Maths Exercise 5.1

**4. Draw a histogram for the frequency table made for the data in Question 3 and answer the following questions.**

**(i) How many workers earn ****`**** 850 and more?**

**(ii) How many workers earn less than ****`**** 850?**

**Ans. ** 830 – 840 group has the maximum number of workers.

**(i)** 10 workers can earn more than ` 850.

**(ii)** 20 workers earn less than ` 850.

NCERT Solutions for Class 8 Maths Exercise 5.1

**5. The number of hours for which students of a particular class watched television during holidays is shown through the given graph.**

**We draw the histogram for above frequency table:**

**Answer the following:**

**(i) For how many hours did the maximum number of students watch T.V.?**

**(ii) How many students watched TV for less than 4 hours?**

**(iii) How many students spent more than 5 hours in watching TV?**

**Ans. ****(i)** The maximum number of students watched T.V. for 4 – 5 hours.

**(ii)** 34 students watched T.V. for less than 4 hours.

**(iii)** 14 students spent more than 5 hours in watching T.V.

## NCERT Solutions for Class 8 Maths Exercise 5.1

NCERT Solutions Class 8 Mathematics PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8 Mathematics includes text book solutions from Class 8 Maths Book . NCERT Solutions for CBSE Class 8 Maths have total 16 chapters. 8 Maths NCERT Solutions in PDF for free Download on our website. Ncert class 8 solutions PDF and Maths ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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