regression analysis Flashcards
when did lenarde create method of least squares
1805
when did gauss use method of least squares
1809
when did sir galton coin ‘REGRESSION’
1822-1911?? how long he lived
when was George Yule’s joined distrubution assumed to be Gaussian
1851-1952
when was Karl pearson’s joined distribution assumed to be Gaussian
1857-1936
when did sir ronald fisher weaken the assumption of yule and pearson
1980-1962
what ‘s the earliest form of regression
method of least squares by
- LEGENDRE 1805
- GAUSS 1809
used for astronomic observations - orbits of comets and minor planets around the sun
what did gauss do in 1821
Gauss published a further development of the theory of least squares, including a
version of the Gauss–Markov theorem
what did Francis galton do in 1890
the term “regression” was coined by Francis Galton to describe a biological phenomenon which was
‘heights of descendants of tall ancestors tend to
regress down towards a normal average’
when did Udny Yule and Karl Pearson extend Galton’s work in
1897-1903
Galton’s work was later extended by Udny Yule and
Karl Pearson to a more general statistical context.
In the work of Yule and Pearson, the joint
distribution of the response and explanatory
variables is assumed to be Gaussian.
when did R.A. fisher weaken pearson and yule
1922-1925
- his assumption is simular to Gauss’s in 1821
- he states that ‘conditional distribution of the response
variable is Gaussian, but the joint distribution need not
be’
when did Economists use electromechanical desk calculators to calculate regressions.
1950s-1960s
before what date did it take up to 24 hours to
receive the result from one regression
before 1970
types of statistical modelling
deterministic and probabilistic models
types of probabilistic models
- regression models
- correlation models
- othe models
what is the linear regression model
staetes that : Relationship Between Variables Is a Linear Function
