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Inclusive class Intervals
Example
Inclusive to Exclusive Series
16-20 4 15.5-20.5 4
21-25 12
20.5.5-25.5 12
26-30 18
26-30.5 18
31-35 26 30.5-35.5 26
36-40 14 35.5-40.5 14
41-45 10
40.5-45.5 10
46- 50 6
45.5- 50.5 6
Basis of Difference Histogram Bar Diagram
Meaning It is a form of representing It is a graphical
data through vertical bars representation of data using
whose areas are bars of different heights.
proportional to the given
frequencies.
Kind of data for which It can only be drawn for It can be drawn for both
useful continuous data. discrete and random data.

