If we order the numbers
6 7 8 10 13
And then place the median between 8 and 10
6 7 8 9 10 13
We can see that the median is the average of 8 &10. X must be the third value on the right side of 9. However it must be at least 10, otherwise the median would change.


David W.
To clarify: When the data has an EVEN number of observations, the MEDIAN (at the middle) is computed as the AVERAGE of the two middle values. Note that this is an ordered list of data -- only ordered positions are considered, not value of observation, not value of observation - - - except when there are an even number of observations.05/09/22
Mark M.
The median is the value half way through the ordered data. It is not the average. That is called the mean.05/08/22