Construct a frequency polygon with the help of histogram for the following frequency distribution. Maximum marks is $10$ .

Marks obtained $2 - 4$ $4 - 6$ $4 - 6$ $6 - 8$ $8 - 10$
No. of students $7$ $8$ $4$ $9$ $2$

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Solution

Here, we see that class interval $4 - 6$ is repeated. So, we need to make certain modifications.

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Question 65

Using the frequency table, answer the following:

9 students got full marks ?
$\begin{matrix} Marks(Obtained out of 10) & 4 & 5 & 7 & 8 & 9 & 10 Frequency & 5 & 10 & 8 & 6 & 12 & 9 \end{matrix}$

Question 1(b)

In a mathematics test, the following marks were obtained by 40 students. Arrange these marks on a table using tally marks.

How many students obtained marks below 4?

Question 1(a)

In a mathematics test, the following marks were obtained by 40 students. Arrange these marks on a table using tally marks.

Find how many students obtained marks equal to or more than 7?

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Marks obtained	$2 - 4$	$4 - 6$	$4 - 6$	$6 - 8$	$8 - 10$
No. of students	$7$	$8$	$4$	$9$	$2$