Advertisements
Advertisements
Question
In a botanical garden, the number of different types of plants are found as follows:
| Type of the plants | Number of plants |
| Herb | 50 |
| Shrub | 60 |
| Creeper | 20 |
| Climber | 45 |
| Tree | 95 |
Draw a bar graph to represent the above information and answer the following questions:
- Which type of plant is maximum in number in the garden?
- Which type of plant is minimum in number in the garden?
Advertisements
Solution
In order to construct a bar graph representing the above data, we follow the following steps:
Step I: Take a graph paper and draw two mutually perpendicular lines OX and OY. Let OX as the horizontal axis and OY as the vertical axis.
Step II: Along OX, mark type of the plant and along OY, mark number of plants.
Step III: Choose a suitable scale to determine the heights of the bars, according to the availability of space. Here, we choose 1 unit length represents 10 plants.
Step IV: Calculate the height of various bars as follows
| Type of the plants | Height of bars |
| Herb | `50/10` = 5 units |
| Shrub | `60/10` = 6 units |
| Creeper | `20/10` = 2 units |
| Climber | `45/10` = 4.5 units |
| Tree | `95/10` = 9.5 units |
Hence, the required bar graph for the given data is shown below
Scale: 1 unit length = 10 plants
- On studying bar graph, tree is maximum in number in the garden.
- On studying bar graph, creeper plants is minimum in number in the garden.
APPEARS IN
RELATED QUESTIONS
This bar graph shows the maximum temperatures in degrees Celsius in different cities on a certain day in February. Observe the graph and answer the questions.
- What data is shown on the vertical and the horizontal lines?
- Which city had the highest temperature?
- Which cities had equal maximum temperatures?
- Which cities had a maximum temperature of 30° C?
- What is the difference between the maximum temperatures of Panchgani and Chandrapur?
Write the names of four of your classmates. Beside each name, write his/her weight in kilograms. Enter this data in a table like the above and make a bar graph.
The following data gives total marks (out of 600) obtained by six children of a particular class. Represent the data on a bar graph.
| Students | Ajay | Bali | Dipti | Faiyaz | Geetika | Hari |
| Marks Obtained | 450 | 500 | 300 | 360 | 400 | 540 |
The lengths (in the nearest centimetre) of 30 drumsticks are given as follows.
| Lengths | Number of drumsticks |
| 24 | |||| |
| 25 | -- |
| 26 | -- |
| 27 | |||| | |
| 28 | -- |
| 29 | |||| ||| |
| 30 | |||| | |
| 31 | |||| |
Draw the bar graph showing the same information.
Data was collected on a student’s typing rate and graph was drawn as shown below. Approximately how many words had this student typed in 30 seconds?
Complete the given table and draw a graph.
| x | 0 | 1 | 2 | 3 |
| y = 3x + 1 | 1 | 4 | - | - |
A survey of 120 school students was done to find which activity they prefer to do in their free time.
| Preferred activity | Number of students |
| Playing | 45 |
| Reading story books | 30 |
| Watching TV | 20 |
| Listening to music | 10 |
| Painting | 15 |
Draw a bar graph to illustrate the above data taking a scale of 1 unit length = 5 students.
Which activity is preferred by most of the students other than playing?
The following table shows the number of bicycles manufactured in a factory from the years 1998 to 2002. Illustrate this data using a bar graph. Choose a scale of your choice.
| Years | Number of bicycles manufactured |
| 1998 | 800 |
| 1999 | 600 |
| 2000 | 900 |
| 2001 | 1100 |
| 2002 | 1200 |
- In which year was the maximum number of bicycles manufactured?
- In which year was the minimum number of bicycles manufactured?
Which element is classified as representing the "numerical values (frequency, amount, or measure)" in a bar graph?
A bar graph shows Gujiya (13 students), Jalebi (6 students), and Barfi (3 students). Which sweet is least preferred based on bar height?
