Step-by-Step Textbook Solutions for Class 8 Maths Chapter 11 Statistics Set 11.2
Review structured textbook solutions for Class 8 Maths Chapter 11 Statistics Set 11.2. Built according to MSBSHSE guidelines for the 2026-27 academic year, these downloadable answers support daily revision and problem-solving accuracy.
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Question 1. Observe the following graph and answer the questions.
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक विभाजित दंड आलेख (subdivided bar graph) है जो मार्च और अप्रैल महीनों में विभिन्न व्यक्तियों (सविता, सरोज, वर्षा, मेघा, वैशाली) द्वारा की गई बचत को दर्शाता है। प्रत्येक व्यक्ति के लिए एक दंड है, जिसे मार्च और अप्रैल की बचत के लिए दो खंडों में विभाजित किया गया है। Y-अक्ष बचत (रुपये में) को प्रदर्शित करता है, जहाँ 1 सेमी Rs. 200 के बराबर है।
(i) State the type of the graph.
(ii) How much is the savings of Vaishali in the month of April?
(iii) How much is the total of savings of Saroj in the months March and April?
(iv) How much more is the total savings of Savita than the total savings of Megha?
(v) Whose savings in the month of April is the least?
Answer:
Solution:
(i) The given graph is a subdivided bar graph.
(ii) Vaishali's savings in the month of April is Rs. 600.
(iii) Total savings of Saroj in the months of March and April is Rs. 800.
(iv) Savita's total saving = Rs. 1000, Megha's total saving = Rs. 500
.·. difference in their savings = 1000 - 500 = Rs. 500.
Savita's saving is Rs. 500 more than Megha.
(v) Megha's savings in the month of April is the least.
In simple words: This question asks you to analyze a subdivided bar graph showing individual savings across two months, March and April, and extract specific data points like total savings, monthly savings, differences, and minimum values.
🎯 Exam Tip: Pay close attention to the scale on the Y-axis and how the bars are subdivided to correctly read the values for each segment. Ensure you answer all parts of the question accurately.
Question 2. The number of boys and girls, in std 5 to std 8 in a Z.P. School is given in the table.
Draw a subdivided bar graph to show the data. (Scale : On Y axis, 1cm = 10 students)
| Standard | 5th | 6th | 7th | 8th |
|---|---|---|---|---|
| Boys | 34 | 26 | 21 | 25 |
| Girls | 17 | 14 | 14 | 20 |
Answer:
Solution:
| Standard | 5th | 6th | 7th | 8th |
|---|---|---|---|---|
| Boys | 34 | 26 | 21 | 25 |
| Girls | 17 | 14 | 14 | 20 |
| Total | 51 | 40 | 35 | 45 |
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक विभाजित दंड आलेख है जो एक Z.P. स्कूल में 5वीं से 8वीं कक्षा तक के लड़कों और लड़कियों की संख्या को दर्शाता है। X-अक्ष कक्षा के मानक (5वीं, 6वीं, 7वीं, 8वीं) को दिखाता है, और Y-अक्ष छात्रों की संख्या को प्रदर्शित करता है, जहाँ 1 सेमी 10 छात्रों के बराबर है। प्रत्येक कक्षा के दंड को लड़कों और लड़कियों की संख्या के अनुसार दो भागों में विभाजित किया गया है।
In simple words: This question requires you to create a subdivided bar graph based on the provided data, showing the distribution of boys and girls across different standards in a school. First, calculate the total students for each standard to prepare for plotting the stacked bars.
🎯 Exam Tip: Remember to clearly label both axes, provide a scale, and include a legend for the subdivisions (Boys and Girls) in your subdivided bar graph to ensure full marks.
Question 3. In the following table number of trees planted in the year 2016 and 2017 in four towns is given. Show the data with the help of subdivided bar graph.
| Year\Town | karjat | Wadgaon | Shivapur | Khandala |
|---|---|---|---|---|
| 2016 | 150 | 250 | 200 | 100 |
| 2017 | 200 | 300 | 250 | 150 |
Answer:
Solution:
| Year\Town | karjat | Wadgaon | Shivapur | Khandala |
|---|---|---|---|---|
| 2016 | 150 | 250 | 200 | 100 |
| 2017 | 200 | 300 | 250 | 150 |
| Total | 350 | 550 | 450 | 250 |
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक विभाजित दंड आलेख है जो चार अलग-अलग कस्बों (करजत, वडगाँव, शिवपुर, खंडाला) में वर्ष 2016 और 2017 में लगाए गए पेड़ों की संख्या को दर्शाता है। X-अक्ष कस्बों के नामों को प्रदर्शित करता है, और Y-अक्ष लगाए गए पेड़ों की संख्या को दर्शाता है, जहाँ 1 सेमी 100 पेड़ों के बराबर है। प्रत्येक कस्बे के दंड को 2016 और 2017 में लगाए गए पेड़ों की संख्या के लिए दो खंडों में विभाजित किया गया है।
In simple words: This question requires you to visualize data about tree planting in different towns over two years using a subdivided bar graph. You'll need to sum up the total trees planted for each town to properly stack the bars.
🎯 Exam Tip: Ensure your graph clearly distinguishes between the two years (2016 and 2017) using different colors or patterns in the legend, and accurately plots the total number of trees for each town as the total height of the bar.
Question 4. In the following table, data of the transport means used by students in 8th standard for commutation between home and school is given. Draw a subdivided bar diagram to show the data. (Scale: On Y axis: 1 cm = 500 students)
| Means of commutation\Town | Paithan | Yeola | Shahapur |
|---|---|---|---|
| Cycle | 3250 | 1500 | 1250 |
| Bus and auto | 750 | 500 | 500 |
| On foot | 1000 | 1000 | 500 |
Answer:
Solution:
| Means of commutation\Town | Paithan | Yeola | Shahapur |
|---|---|---|---|
| Cycle | 3250 | 1500 | 1250 |
| Bus and auto | 750 | 500 | 500 |
| On foot | 1000 | 1000 | 500 |
| Total | 5000 | 3000 | 2250 |
ℹ️ चित्र व्याख्या (Diagram Explanation): यह एक विभाजित दंड आलेख है जो 8वीं कक्षा के छात्रों द्वारा घर और स्कूल के बीच आने-जाने के लिए उपयोग किए जाने वाले विभिन्न साधनों (साइकिल, बस और ऑटो, पैदल) का डेटा दिखाता है। X-अक्ष कस्बों (पैठन, येओला, शाहपुर) को दर्शाता है, और Y-अक्ष छात्रों की संख्या को प्रदर्शित करता है, जहाँ 1 सेमी 500 छात्रों के बराबर है। प्रत्येक कस्बे के दंड को आवागमन के तीन अलग-अलग साधनों के लिए खंडों में विभाजित किया गया है।
In simple words: This question requires you to graphically represent student commute data using a subdivided bar graph. For each town, you'll stack the number of students using cycles, buses/autos, and walking to school to form the bars.
🎯 Exam Tip: When drawing a subdivided bar graph with three segments, ensure each segment is distinctively marked (e.g., with different shades or patterns) and clearly labeled in the legend. Double-check your calculations for each segment's height according to the given scale.
Maths Class 8 Curriculum Solutions: Chapter 11 Statistics Set 11.2
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Detailed Answer Guides for Chapter 11 Statistics Set 11.2
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