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Question: Which of the following statement(s) is/are true?
I. The other name for an ogive is a frequency polygon.
II. The boundaries for the class limits 8.6 - 8.8 are 8.55 - 8.85.
III. A Pareto chart can be used to show the relationship between the parts and the whole.


A ) II only
B ) I and III only
C ) II and III only
D ) all are true

Steps to derive

1 Histogram, Frequency polygon, Ogive graphs are used to present the data in graphical form. An ogive graph is also called as cumulative frequency graph.

2 The boundaries for the class limits 8.6 - 8.8 are 8.55 - 8.85.
 [8.6 - 0.05 = 8.55, 8.8 + 0.05 = 8.85.]

3 A pie graph is to show the relationship of the parts to the whole by visually comparing the sizes of the sectors.

4 Therefore only statement II is true.



Hence the right answer is Option A

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