To calculate the median, you first need to arrange the data in numerical order. The median is the middle number in a sorted list of numbers. If there is an even number of observations, the median is the average of the two middle numbers.
For example, let’s say we have the following data: 3, 1, 4, 2. First, we will sort these values:
- 1
- 2
- 3
- 4
Now, since there are four numbers (an even count), we find the two middle numbers, which are 2 and 3. Next, we calculate the average of these two numbers:
Median = (2 + 3) / 2 = 5 / 2 = 2.5
So, the median of the data set is 2.5.
If you have a different set of data, you can follow the same steps: sort the data, identify the middle numbers, and calculate the median accordingly.