Statistics & Probability

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Saujanna JafreenLecturer

Department of Natural Sciences

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GROUP NAME

PROBABILITIES

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GROUP MEMBERS

Ashraful Islam Sheiblu ID:152-35-1129

Bishnu Chandra SutradharID:152-35-1130

Ratan HazraID:152-35-1131

Mehedi Hasan Rimon ID:152-35-1135

Talha AhmedID:152-35-1138

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TOPIC NAME

BAR DIAGRAM

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What is bar diagram ?

A bar chart or bar diagram is a chart that present qualitative (grouped) data with rectangular bars with lengths proportional to the values that they represent. [N:B: In this type diagram, rectangular bars must be separated from each other by same distance. ]

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ABOUT QUALITATIVE DATA

•Deals with descriptions.•Data can be observed but not measured.•Colors, textures, smells, tastes, appearance, beauty, gender, favourite etc.

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COMPONENTS OF BAR DIAGRAM

Collecting qualitative data Drawing a X and Y axis Label the X axis Label the Y axis Drawing the bars a

b

c

variable variable variable

Y – axis

x – axis

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AN EXAMPLE OF BAR DIAGRAM

Figure 1: Numbers of children favorite cartoon Tom & Jerry, Doraemon & Super man .

Cartoon Name

Number of Child

Tom & Jerry 8

Doraemon 7

Super man 5

Total 20

Table 1: A Uni-variate table of 20 children favorite Tom & Jerry, Doraemon & Super man Cartoon.

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DIFFERENTS TYPES OF BAR DIAGRAM

•Horizontal Bar Diagram•Grouped Bar Chart•Stacked Bar chart

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VIEW of BAR DIAGRAM

Fig2 - Horizontal Bar Diagram

Fig4 - Stacked l Bar Diagram

Fig3 - Grouped Bar Diagram Page: 10

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