This document contains information about line graphs, including: 1) A line graph uses points connected by lines to show how something changes over time or as another variable changes. 2) Line graphs are used for qualitative data to track changes over short or long periods of time or to compare changes for multiple groups. 3) Examples of qualitative data include hair color, softness of skin, and gender, which can't be directly measured.

1. Welcome
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2. Group member
Sajid Sakib
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Tanvir Zaman
152-35-1160
Ishak Ahammed
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Maksudur Rahman Maruf
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khondoker Khademul Bari
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3. Line Graph

4. What is Line Graph
A graph that uses points connected by lines to show
how something changes in value (as time goes by
, or as something else happens).
Fig1: Sample of a line graph 4

5. Line graphs are used for “qualitative data”. Line graphs are
used to track changes over short and long periods of time.
When smaller changes exist, line graphs are better to use.
Line graphs can also be used to compare changes over the
same period of time for more than one group.
What is a line graph used for
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6. • Qualitative data is information about qualities;
information that can't actually be measured.
• Example:
 Hair Color
 Softness Of Skin
 Gender
About Qualitative Data
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7. Line Graph
Draw a line for your x axis and your y axis.
Add axis labels and an axis scale.
Mark your data points.
Draw a line through the data points.
Add a chart title.
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8. 1
2
3
4
1 2 3 4 5
Time (semester)
result
3.75
3.50
2.75
3.00
Time Result
1
2
3
4
3.75
3.50
2.75
3.00
Fig:
Table:
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Distribution of per semester result
(line graph)Distribution of per semester result

9. Powered by:
Saujanna Jafreen
Lecturer
Department of Natural Sciences
Daffodil International University
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10. Thank you
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