Consider the following frequency distribution of the heights of 60 students of a class

The upper limit of the median class in the given data is

To find median class , let us prepare cumulative frequency distribution (less than type) table.

Here, total frequency = N = 60.

Cumulative frequency just greater than or equal to 30 is 38.

Therefore, the corresponding class, namely, 160 – 165, is the median class.

Therefore, the upper limit of the median class is 165.

Hence, option a is the correct answer.