PPT - Statistical Description of Data

 Page 1


CONTENTS
? INTRODUCTION
? CLASSIFICATION OF DATA
? TYPES OF DATA
? PRINCIPLES OF DATA PRESENTATION
? METHODS OF DATA PRESENTATION
TEXT PRESENTATION
TABULAR  PRESENTATION
GRAPH PRESENTATION
? CONCLUSION
? REFERENCES
Page 2


CONTENTS
? INTRODUCTION
? CLASSIFICATION OF DATA
? TYPES OF DATA
? PRINCIPLES OF DATA PRESENTATION
? METHODS OF DATA PRESENTATION
TEXT PRESENTATION
TABULAR  PRESENTATION
GRAPH PRESENTATION
? CONCLUSION
? REFERENCES
INTRODUCTION
• Data are individual units of information. A data describes a single quality or quantity of 
some object or phenomenon. In analytical processes, data are represented by variables.
• Data presentation is a method by which people organize, summarize and communicate information 
using a variety of tools such as text , tables , graphs and diagrams
Page 3


CONTENTS
? INTRODUCTION
? CLASSIFICATION OF DATA
? TYPES OF DATA
? PRINCIPLES OF DATA PRESENTATION
? METHODS OF DATA PRESENTATION
TEXT PRESENTATION
TABULAR  PRESENTATION
GRAPH PRESENTATION
? CONCLUSION
? REFERENCES
INTRODUCTION
• Data are individual units of information. A data describes a single quality or quantity of 
some object or phenomenon. In analytical processes, data are represented by variables.
• Data presentation is a method by which people organize, summarize and communicate information 
using a variety of tools such as text , tables , graphs and diagrams
CLASSIFICATION
Page 4


CONTENTS
? INTRODUCTION
? CLASSIFICATION OF DATA
? TYPES OF DATA
? PRINCIPLES OF DATA PRESENTATION
? METHODS OF DATA PRESENTATION
TEXT PRESENTATION
TABULAR  PRESENTATION
GRAPH PRESENTATION
? CONCLUSION
? REFERENCES
INTRODUCTION
• Data are individual units of information. A data describes a single quality or quantity of 
some object or phenomenon. In analytical processes, data are represented by variables.
• Data presentation is a method by which people organize, summarize and communicate information 
using a variety of tools such as text , tables , graphs and diagrams
CLASSIFICATION
TYPES OF DATA
Qualitative/ 
Quantitative 
data
Discrete/ 
Continuous 
data
Primary/ 
Secondary 
data
Nominal/ 
Ordinal data
Page 5


CONTENTS
? INTRODUCTION
? CLASSIFICATION OF DATA
? TYPES OF DATA
? PRINCIPLES OF DATA PRESENTATION
? METHODS OF DATA PRESENTATION
TEXT PRESENTATION
TABULAR  PRESENTATION
GRAPH PRESENTATION
? CONCLUSION
? REFERENCES
INTRODUCTION
• Data are individual units of information. A data describes a single quality or quantity of 
some object or phenomenon. In analytical processes, data are represented by variables.
• Data presentation is a method by which people organize, summarize and communicate information 
using a variety of tools such as text , tables , graphs and diagrams
CLASSIFICATION
TYPES OF DATA
Qualitative/ 
Quantitative 
data
Discrete/ 
Continuous 
data
Primary/ 
Secondary 
data
Nominal/ 
Ordinal data
Qualitative data:
Also called as enumeration data .Represents a particular quality or attribute. There is no notion 
of magnitude or size of the characteristic, as they can't be measured. Expressed as numbers 
without unit of measurements . 
Eg:
Quantitative data:
Also called as measurement data. These data have a magnitude.  Can be expressed as number 
with or without unit of measurement. 
Eg:
Religion, Sex, Blood group etc.
Height in cm, Hb in gm%, BP inmm of Hg, Weight in kg.