Notesale: Turn your study into money

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Class 12, Eco chapter 1 gseb
"Meaning of a Diagram and a Graph:
1
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It is drawn for selfexplanatory data
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Uses: For advertising agency to draw attention, for government to provide information,
for social organisation to spread awareness
...
Graph:"
A representation of observed data by means of a line or a curve on a graph paper is
graph
...
To draw a graph an appropriate
scale is must and also knowledge of statistics is essential to draw and understand it
Meaning of a Diagram and a Graph:
1
...
It is drawn for selfexplanatory data
...

Uses: For advertising agency to draw attention, for government to provide information,
for social organisation to spread awareness
...
Graph:
A representation of observed data by means of a line or a curve on a graph paper is
graph
...
To draw a graph an appropriate
scale is must and also knowledge of statistics is essential to draw and understand it
...

Importance of Diagrams and Graphs in Economics:
The study of economics is made easier by way of diagrams and graphs
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Changes occurring in various sectors of economy can also be easily understood
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Many difficult aspects of economics are presented through a diagram or a graph and
time and effort of presenting and understanding these aspects is saved
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Points to be considered while drawing a Diagram and a Graph:
1) Choice of type of Diagram or Graph and their presentations
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3)Selection of Scales and Measures
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5)To mention the source of data
6) To mention the method of calculating the data
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Time-based Line Diagrams (Curves):
Time-based line diagram or curve show the shape or slope of relationship between two
economic variables
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In this type of
diagram independent variable is measured on X-axis and dependent variable is
measured on Y-axis
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2
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In bar diagram width of
each bar is taken equal and its height (length) is taken proportional to the value of the
data
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• Clustered Bar Diagram: This type of diagram is drawn for more than one related
variables over a common base say various places, times, things, etc
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has sub-categories
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• The length (height) of respective bars should be proportional to the value of the
variable they represent
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• All bars are usually drawn on X-axis
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• All bars should be arranged from left to right in order of the data s

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