The presentation covers three types of charts: bar charts, histograms, and pie charts. Bar charts compare discrete values using horizontal or vertical bars, while histograms represent frequency distributions with rectangles. Pie charts illustrate relative sizes of different categories in a circular format, often used for percentage or proportional data.

1. Welcome To
Our
Presentation

2. Topic :
Bar Chart
Histogram
Pie Chart

3. What Is Bar Chart?
A bar graph is a chart that uses either horizontal or
vertical bars to show comparisons among
categories.
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4. shows the specific
categories being
compared
represents a
discrete value.
Axis
Axis
02

5. It is also possible to draw bar charts so that the bars are
horizontal which means that the longer the bar, the
larger the category.
Horizontal bar chart:
03

6. A grouped or clustered bar graph is used to represent
discrete values for more than one item that share the
same category.
Grouped bar chart:
04

7. What Is Histogram?
It is a representation of a frequency distribution by
means of rectangles whose widths represent class
intervals and whose areas are proportional to the
corresponding frequencies.
It Looks like
05

8. Simple Example:
 Consider the following set for example
{1,2,2,3,3,3,3,4,4,5,6}
 we can graph them like this:
06

9. Data Range Frequency
0-10 1
10-20 3
20-30 6
30-40 4
40-50 2
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Data Ranges :

10. Pie chart:
A Pie Chart (or Pie Graph) is a circular chart divided into
sectors, each sector shows the relative size of each
value.
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11. Example : Student Grades
A B C D
4 12 10 2
A Geade
B Geade
C Geade
D Geade
STUDENT GRADE
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12. Presented Using a Pie Chart?
 Pie charts are a visual way of displaying data that might
otherwise be given in a small table.
 Nominal data are categorized according to descriptive or
qualitative information such as county of birth or type of pet
owned.
 Pie charts are generally used to show percentage or
proportional data
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13. Thank
You !