PPT: Data Handling

 Page 1


Data 
Handling
Page 2


Data 
Handling
Topics to be Covered 
1.Introduction
2.Organising Data by using tally marks
3.Pictographs
4.Interpretation of a Pictograph
5.Drawing a Pictograph
6.A bar graph 
7.Interpretation of a bar graph
8.Drawing a bar graph
DATA HANDLING
Page 3


Data 
Handling
Topics to be Covered 
1.Introduction
2.Organising Data by using tally marks
3.Pictographs
4.Interpretation of a Pictograph
5.Drawing a Pictograph
6.A bar graph 
7.Interpretation of a bar graph
8.Drawing a bar graph
DATA HANDLING
Data is a collection of numbers gathered to give some 
information.
For Example: 
?Record the attendance of students in  a class every day.
?Marks obtained by a student after every test or examination.
?Age of all students of your class.
?Choice of sweets or fruits of the students of class 6
th
.
?Size of shoes of students in class 6
th
.
?Marks obtained by all the students of class 6
th
in a test.
1. Introduction
Page 4


Data 
Handling
Topics to be Covered 
1.Introduction
2.Organising Data by using tally marks
3.Pictographs
4.Interpretation of a Pictograph
5.Drawing a Pictograph
6.A bar graph 
7.Interpretation of a bar graph
8.Drawing a bar graph
DATA HANDLING
Data is a collection of numbers gathered to give some 
information.
For Example: 
?Record the attendance of students in  a class every day.
?Marks obtained by a student after every test or examination.
?Age of all students of your class.
?Choice of sweets or fruits of the students of class 6
th
.
?Size of shoes of students in class 6
th
.
?Marks obtained by all the students of class 6
th
in a test.
1. Introduction
To get particular information from the given data quickly,
the data has to organised or arrangement first. The
organisation of data can be done in one of the following
ways:.
?Ascending or descending order.
?Organising data by using tally marks.
?By using pictographs
?By using bar graphs
2. Organising of Data
Page 5


Data 
Handling
Topics to be Covered 
1.Introduction
2.Organising Data by using tally marks
3.Pictographs
4.Interpretation of a Pictograph
5.Drawing a Pictograph
6.A bar graph 
7.Interpretation of a bar graph
8.Drawing a bar graph
DATA HANDLING
Data is a collection of numbers gathered to give some 
information.
For Example: 
?Record the attendance of students in  a class every day.
?Marks obtained by a student after every test or examination.
?Age of all students of your class.
?Choice of sweets or fruits of the students of class 6
th
.
?Size of shoes of students in class 6
th
.
?Marks obtained by all the students of class 6
th
in a test.
1. Introduction
To get particular information from the given data quickly,
the data has to organised or arrangement first. The
organisation of data can be done in one of the following
ways:.
?Ascending or descending order.
?Organising data by using tally marks.
?By using pictographs
?By using bar graphs
2. Organising of Data
Tally marks are a way of expressing number in groups of 
five. The numbers are represented as follows :
Organising Data by using 
Tally marks
1
2
3
4
5
6
7
8
9
10
I
II
III
IIII
IIII
IIII I
IIII II
IIII III
IIII IIII
IIII IIII
One vertical line
Two vertical line
Three vertical line
Four vertical line
Diagonal across four vert. line
Five +1 vertical line
Five +2 vertical line
Five +3 vertical line
Five + 4 vertical line
Five + Five 
Note:- IIII  or IIII   = 5 , Both symbols are correct