Another new stats page: Mean, Median and Mode from Grouped Frequencies
All feedback welcome!
That was a lot more than I knew about it. I will use the page for notes, thanks!
In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
Another good page. I'd not met those formulas for median and mode in grouped tables; I've always worked from a sketch of a cumulative frequency graph; so I derived my own.
For continuous data, taking the median as the (n+1)/2 th value I get
It doesn't make much difference and it's only an estimate anyway, but, for example, with the baby carrots example I get 172.0, compared with your 171.7.
I drew a cumulative frequency graph and found the median from that as 172.
I've done some 'googling' and both formulas came up.
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei