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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.
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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