4 ms·
How can 90% be below average? Perhaps you yourself are not familiar with mathematics?
by mesozoic 14y ago
How can 90% be below average? Perhaps you yourself are not familiar with mathematics?
- vwinsyee 14y ago90% can be below average. It depends on how you define 'average.' If you're using the median, then 'below average' can only be 50%. But if you use the mean (or its variants), then you can have 90% of a population be 'below average' if the population is very skewed.
- pjscott 14y ago$ python >>> import numpy as np >>> data = np.array([2, 1, 3, 2, 100000]) >>> np.mean(data) 20001.599999999999 >>> np.median(data) 2.0
- jhandl 14y agoI added the "seriously though" to clarify the obvious joke. Sorry you took it seriously, though.
- nostrademons 14y agoAlso, he was talking about 90% of coders he interviews. Of course they'd be below average - if they were above average, someone would hire them and they'd leave the job poll quickly. Such is the pitfalls of sampling a non-random population...