Empirical means it is spotted from observations rather than derived from theory.
http://www.pinkmonkey.com/studyguides/s … 404601.asp
I cannot find anything that explains how Karl Pearson found the rule, but it is quite easy to make up examples where it is not true.
A good example of an empirical law is Bodes law.
http://en.wikipedia.org/wiki/Bode%27s_law
Of course it may be that we just lack the right theory to explain the relationship at this time.
You could argue that all scientific laws start as empirical (eg. Kepler's laws)
http://en.wikipedia.org/wiki/Kepler%27s … ary_motion
before someone comes along and provides the underlying theory.
http://en.wikipedia.org/wiki/Newton%27s … ravitation
Bob
]]>I have a few questions:
1. What are 'empirical' formulae?
2. Is the mentioned formula for mode proved? If not, then how did we come around it?
3. 'Mode is that outcome with the maximum frequency' This means that the Mode of the data is definately a member of the set of data. However, if we calculate mode according to the formula, it might not always be one of the members of the data. Any explanation for this?