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What is Histogram?
A Histogram is a graphic
representation of a continuous
frequency distribution through
special kind of vertical bar charts.
HISTOGRAM
How Histogram Looks?
0
1
2
3
4
5
6
Category 1 Category 2 Category 3 Category 4
How to draw Histogram?
• Draw X and Y axis
• Mark the class intervals in X axis and
frequencies in Y axis.
• Plot the corresponding X and Y values in the
graph.
• Draw bars for each corresponding values .
Represent the following Frequency
table by Histogram.
Marks Number of Students
10-15 5
15-20 20
20-25 47
25-30 38
30-35 10
Construction
Step1:
HISTOGRAM
0
5
10
15
20
25
30
35
40
45
50
15-20 20-25 25-30 30-35 35-40
Number of Students
Number of Students
Saju

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Saju