Statistics Class 10 PPT

 Page 1


Data Handling
Page 2


Data Handling
Introduction
? In this chapter we shall learn how to make a given set of 
data easily  understandable.
? By data, we mean a collection of numbers gathered to give 
some specific information. For example the number of runs 
scored in a cricket match, the number of pens in your table, 
etc .
? One of the major part of mathematics, deals with 
organising and analysing various data.
? It is also useful in other subjects like statistics, physics, 
economics, etc.
Page 3


Data Handling
Introduction
? In this chapter we shall learn how to make a given set of 
data easily  understandable.
? By data, we mean a collection of numbers gathered to give 
some specific information. For example the number of runs 
scored in a cricket match, the number of pens in your table, 
etc .
? One of the major part of mathematics, deals with 
organising and analysing various data.
? It is also useful in other subjects like statistics, physics, 
economics, etc.
Representing data
? The major goal is this chapter is to learn ways of 
representing data in a coherent manner.
? We can do this by using a variety of techniques to be 
discussed now.
? First and foremost we can use simple tally table ( shown 
below ) to represent the frequency with which a particular 
event is occurring .
Page 4


Data Handling
Introduction
? In this chapter we shall learn how to make a given set of 
data easily  understandable.
? By data, we mean a collection of numbers gathered to give 
some specific information. For example the number of runs 
scored in a cricket match, the number of pens in your table, 
etc .
? One of the major part of mathematics, deals with 
organising and analysing various data.
? It is also useful in other subjects like statistics, physics, 
economics, etc.
Representing data
? The major goal is this chapter is to learn ways of 
representing data in a coherent manner.
? We can do this by using a variety of techniques to be 
discussed now.
? First and foremost we can use simple tally table ( shown 
below ) to represent the frequency with which a particular 
event is occurring .
Pictograph 
? We can use a pictograph to represent data.
? A pictograph is nothing but representing a particular 
set of data using pictures of objects.
? It is widely used in newspapers and other forms of 
media.
Page 5


Data Handling
Introduction
? In this chapter we shall learn how to make a given set of 
data easily  understandable.
? By data, we mean a collection of numbers gathered to give 
some specific information. For example the number of runs 
scored in a cricket match, the number of pens in your table, 
etc .
? One of the major part of mathematics, deals with 
organising and analysing various data.
? It is also useful in other subjects like statistics, physics, 
economics, etc.
Representing data
? The major goal is this chapter is to learn ways of 
representing data in a coherent manner.
? We can do this by using a variety of techniques to be 
discussed now.
? First and foremost we can use simple tally table ( shown 
below ) to represent the frequency with which a particular 
event is occurring .
Pictograph 
? We can use a pictograph to represent data.
? A pictograph is nothing but representing a particular 
set of data using pictures of objects.
? It is widely used in newspapers and other forms of 
media.
Pictograph 
? For example, the pictograph depicted below 
shows the number of apples sold in Jan,Feb,Mar 
and Apr.