Originally Posted by zacshelby
If one can compute the processing times for the 75th & 90th percentile of applications submitted globally in a month, then one can certainly compute the median processing times for applications per month.
It's just a different representation of the same data.
75th and 90th percentiles are just two points of the time distribution. The median can't be reverse computed just from those two points without knowing the complete distribution. If the 25th percentile point was known, it is possible to roughly estimate the median. Still very rough since the distribution can be skewed.
The Department should release the complete time distribution (rather than just percentile points) to their principals (Australian public). Otherwise, how could the principals know of their performance (especially when there is no competition).