This document discusses joint bar graphs and provides an example. It defines a joint bar graph as a set of bar graphs showing different data sets joined together. This allows for easier comparison of scales and saves time. The document then provides an example joint bar graph showing the number of trees planted by 5th, 6th, and 7th grade students in their campus in 2018 and 2019. It instructs the reader to draw the joint bar graph using the provided data, with standard (std) on the x-axis and plants scaled to 1cm equaling 10 plants on the y-axis.

1. JOINT BAR GRAPH
Manjiri Sawant
Roll no 48

2. Recall
What are graph?
A graph can be defined as a pictorial representation or a
diagram that represents data or values in an organized
manner..
❖ There are different types of Graph approximately more than 45
graphs are there.

3. X Axis y axis and scale
Y axis
X axis
0
● The ScaleShould be include all the data
values and be easily divided into equal
intervals
Scale
This is the X axis
horizontal line
Represent product,
year ,subject name etc
This is the Y
axis vertical line
Represent unit,
measurement

4. What is a bar graph? And where you have seen bar graph?
● A bar graph can be defined as graphical representation of data,
quantities or numbers using bars its used to compare data.
● In Cricket we have seen the bar graph which shows the information
about run scored in every over and wicket.

5. Ch 7 Joint Bar Graph
What are joint bar graph?
A joint bar graphs is a set of bar graphs showing different sets of
information but joined to each other.
Advantage of Joint bar Graph
★ Camparing of the Scale become easier
★ Time saving

8. Observe the graph shown and answer the
following questions:
1.In Which year did they both produce equal
quantities of Wheat?
Ans: 2011
2. In year 2014 who produced more Wheat?
Ans: Ajay produce more wheat
3.In year 2013,how much wheat did Ajay and
Vijay produce?
Ans:Ajay produce 40 quintals and Vijay produce
30 quintals

9. Example
The number of trees planted by children of 5th 6th and 7th students in their
campus in the year 2018 and 2019 . Draw the joint bar graph below
Year std 5th 6th 7th
2018 38 30 22
2019 42 50 25

10. 5th
6th
7th
Scale :x= std
y=1cm= 10 plants

12. HOME WORK

13. THANK YOU