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Question
Try yourself
On any one day, choose any three cities and record their temperature from the TV or newspaper.
- Make a bar chart in your notebook and ask your friends a few questions about it. See if they understand your chart!
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Solution
Let us show the highest temperature (in degrees Celsius) in three cities: Delhi, Bangalore, and Sikkim.
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RELATED QUESTIONS
Number of children in six different classes are given below. Represent the data on a bar graph.
| Class | Fifth | Sixth | Seventh | Eighth | Ninth | Tenth |
| Number of children | 135 | 120 | 95 | 100 | 90 | 80 |
- How would you choose a scale?
- Answer the following questions:
- Which class has the maximum number of children? And the minimum?
- Find the ratio of students of class sixth to the students of class eight.
Practice time: Afterschool
Ask 10 of your friends about what they like to do most after school.
| What they like to do after school |
Number of children |
| Watching TV | |
| Playing football | |
| Reading storybooks | |
Comparison of parts of a whole may be done by a ______.
The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow.
- What information is represented by the axes?
- In which subject did she score the highest in Test I?
- In which subject did she score the least in Test II?
- In which subject did she score the same marks in both the Tests?
- What are the marks scored by her in English in Test II?
- In which test was the performance better?
- In which subject and which test did she score full marks?
Use the bar graph (see the given figure) to answer the following question.
How many students have dog as a pet?
The following bar graph shows the number of houses (out of 100) in a town using different types of fuels for cooking.
Read the bar graph and answer the following questions:
Scale: 1 unit length = 5 houses
- Which fuel is used in maximum number of houses?
- How many houses are using coal as fuel?
- Suppose that the total number of houses in the town is 1 lakh.
From the above graph estimate the number of houses using electricity.
Observe the given bar graph carefully and answer the questions that follow.
- What information does the bar graph depict?
- How many motor bikes were produced in the first three months?
- Calculate the increase in production in May over the production in January.
- In which month the production was minimum and what was it?
- Calculate the average (mean) production of bikes in 6 months.
Observe the following data:
| Government School, Chandpur | ||
| Daily Attendance | Date: 15.4.2009 | |
| Class | Total Students | Number of Students Present on that Day |
| VI | 90 | 81 |
| VII | 82 | 76 |
| VIII | 95 | 91 |
| IX | 70 | 65 |
| X | 63 | 62 |
- Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
- Which class has the maximum number of students?
- In which class, the difference of total students and number of students present is minimum?
- Find the ratio of number of students present to the total number of students of Class IX.
- What per cent of Class VI students were absent?
The marks out of 100 obtained by Kunal and Soni in the Half Yearly Examination are given below:
| Subjects | English | Hindi | Maths | Science | S. Science | Sanskirt |
| Kunal | 72 | 81 | 92 | 96 | 64 | 85 |
| Soni | 86 | 89 | 90 | 82 | 75 | 82 |
- Draw a double bar graph by choosing appropriate scale.
- Calculate the total percentage of marks obtained by Soni.
- Calculate the total percentage of marks obtained by Kunal.
- Compare the percentages of marks obtained by Kunal and Soni.
- In how many subjects did Soni get more marks than Kunal? Which are those subjects?
- Who got more marks in S. Science and what was the difference of marks?
- In which subject the difference of marks was maximum and by how much?
The table below compares the population (in hundreds) of 4 towns over two years:
| Towns | A | B | C | D |
| 2007 | 2900 | 6400 | 8300 | 4600 |
| 2009 | 3200 | 7500 | 9200 | 6300 |
Study the table and answer the following questions:
- Draw a double bar graph using appropriate scale to depict the above information.
- In which town was the population growth maximum?
- In which town was the population growth least?
