I think the question is asking for the median. If that’s not right, let me know in the comments, and I will help you more.
If we write these data points in order:
2, 4, 4, 5, 5, 6, 6, 6, 6, 7, 8, 9, 10
I start crossing off numbers from one end to the other to find of the middle data point. That’s what the median is.
Remove the first 6 data points and the last 6 data points, and you have your median. If the next median problem you have to solve has an even number of data points, your average the middle two.
Let me know if you have questions.