The heights of 10 students of class 9 are given below:

[tex]\[
\begin{tabular}{|c|c|c|}
\hline
110 cm & 120 cm & 105 cm \\
\hline
98 cm & 115 cm & 130 cm \\
\hline
140 cm & 150 cm & 125 cm \\
\hline
135 cm & 128 cm & 110 cm \\
\hline
\end{tabular}
\][/tex]

(i) What is the height of the tallest student?

(ii) What is the height of the shortest student?

(iii) Find the range of the height.



Answer :

Let's solve the given problem step-by-step:

Heights of the 10 students in class 9 are:
[tex]\[ 110 \, \text{cm}, 120 \, \text{cm}, 105 \, \text{cm}, 98 \, \text{cm}, 115 \, \text{cm}, 130 \, \text{cm}, 112 \, \text{cm}, 125 \, \text{cm}, 118 \, \text{cm}, 119 \, \text{cm} \][/tex]

(i) Height of the Tallest Student:
To find the height of the tallest student, we look for the maximum value in the list of heights.

From the list, the tallest student's height is:
[tex]\[ 130 \, \text{cm} \][/tex]

(ii) Height of the Shortest Student:
To find the height of the shortest student, we look for the minimum value in the list of heights.

From the list, the shortest student's height is:
[tex]\[ 98 \, \text{cm} \][/tex]

(iii) Range of the Heights:
The range of the heights can be found by subtracting the height of the shortest student from the height of the tallest student.

[tex]\[ \text{Range of heights} = \text{Height of the tallest student} - \text{Height of the shortest student} \][/tex]

So, the range of the heights is:
[tex]\[ 130 \, \text{cm} - 98 \, \text{cm} = 32 \, \text{cm} \][/tex]

### Summary:
1. Height of the tallest student: [tex]\( 130 \, \text{cm} \)[/tex]
2. Height of the shortest student: [tex]\( 98 \, \text{cm} \)[/tex]
3. Range of heights: [tex]\( 32 \, \text{cm} \)[/tex]