The heights (in cm) of students in a group are given below:
|
Height |
No. of students |
|
155 |
9 |
|
153 |
3 |
|
154 |
10 |
|
150 |
7 |
|
156 |
6 |
|
151 |
12 |
|
152 |
3 |
What is the median height of students?
Answer & explanation
Correct answer: option 2
Total number of students = 7 + 12 + 3 + 3 + 10 + 6 + 9 = 50 ( even number )
Median ( if even number ) = \(\frac{(n/2)th + (n/2 + 1 )th }{2}\)
= \(\frac{(50/2)th + (50/2 + 1 )th }{2}\)
= \(\frac{25th + 26th }{2}\)
= \(\frac{153 + 154}{2}\)
= 153.5