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State true or false.

The following table gives the distribution of IQ’s (intelligence quotients) of $60$ pupils of class $V$ in a school.

In inclusive form, class limits are obtained by subtracting 0.5 from lower limit and adding 0.5 to the upper limit.

The frequency polygon for the data is:

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True

False

answer is A.

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Detailed Solution

Given a data of IQ of

60

pupils of class

V

Take Horizontal axis

=

IQ.
Vertical axis

=

Number of pupils
Create rectangles with the relevant frequencies as the heights

(y − a x i s)

and class intervals as the bases

(x − a x i s)

. The frequency polygon is given by,
Question Image

Hence, the given table is true.
Hence, option 1 is correct.

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