Given:
Given that the data are represented in the line plot.
From the line plot, the data are {21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 24}
We need to determine the median of the data.
Median:
The median is the middle value in the given set of data.
If the data is even, then there will be two middle numbers, then the median is the average of these two middle numbers.
Thus, from the data, it is obvious that the number of data in the given set is 13.
Hence, the middle number is 23.
Therefore, the median of the data is 23.
Hence, Option c is the correct answer.