The following data gives the distribution of height of students:
Height (in cm) 160 150 152 161 156 154 155
Number of students 12 8 4 4 3 3 7
The median of the distribution is

Moderate

Solution

Arranging the data in ascending order of magnitude, we obtain
Height (in cm) 150 152 154 155 156 160 161
Number of students 8 4 3 7 3 12 4
Cumulative frequency 8 12 15 22 25 37 41
Here, total number of items is 41, which is an odd number.
Hence, the median is $\frac{41 + 1}{2}$ th = 21st item.
From cumulative frequency table, we find that median i.e., 21st item is 155.

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Height (in cm)	160	150	152	161	156	154	155
Number of students	12	8	4	4	3	3	7