Another new stats page: Mean, Median and Mode from Grouped Frequencies
All feedback welcome!
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
That was a lot more than I knew about it. I will use the page for notes, thanks!
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.
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.
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