Suitable Conditions for Median

Suitable Conditions for Median (P50 or M)
its calculative formula look at my the first blog.
its suitable conditions are as below:
1.偏态分布资料(因为它不受特别大或特别小的数据值影响)或数据一段或两端无确切数据;
2.未知分布类型的资料.