Regression analysis, Applied Statistics

Meaning and Definitions of Regression

The dictionary meaning of regression is just opposite the meaning of progression. Progression means to move forward while regression means to move backward going back. Or the return to the mean value. The erm Regression was first used by sir Francis Galton   in1877 in a study paper titled Regression toward Mediocrity in Hereditary Statue. In this paper he analysed the relationship between tjhe height of fathers and their sons. The sir galton   of correlation between theheight of fathers and sons was0.8.He noted in the above study that if the average height of a certain set of fathers is x cm. Above the general average. Thus there was a tendency or move average .Thus there was a tendency or move toward mediocrity. Galton described the average relationship between the height of father and their sons as the line of regression.

Regression is used to establish relationship between two sets of related variables. The important definitions given by prominent  writers are as given below .

Regression is the measure   of average relationship between two or more variables in terms of the original   units of the data.

It  is often more  important to f find out what  the relationship  actually is, in order to estimate or predict one variable  and the statistical  technique  appropriate  to such a case is called  regression analysis.            M. M .Blair

One of the frequently used technique   in economics and business research   to find a relation between two or more variable that are  related causally, is regression are related.                                                            Taro Yamana

From the above definitions it may be concluded that regression analysis is a mathematical measure of the average relationship between a series of two or more variable in terms of the original units of data under study. It is used to predict the value of one variable on the basis of other variable. 

Posted Date: 9/27/2012 6:22:32 AM | Location : United States







Related Discussions:- Regression analysis, Assignment Help, Ask Question on Regression analysis, Get Answer, Expert's Help, Regression analysis Discussions

Write discussion on Regression analysis
Your posts are moderated
Related Questions
Systematic Sampling In Systematic Sampling each element has an equal chance of being selected, but each sample does not have the same chance of being selected. Here,

Calculation for Discrete Series or Ungrouped Data The formula for computing mean is = where,          f  = fr

This question has two parts with multiple items to answer. You are a psychologist who has collected the subjective well-being scores of a number of elderly people aged 90 or abo

We are interested in assessing the effects of temperature (low, medium, and high) and technical configuration on the amount of waste output for a manufacturing plant. Suppose that


Select and generate your assignment portfolio. The S&P/ASX 200 index is comprised of several sub-indices, including the following: 0) XPJ: The S&P/ASX 200 A-REIT Index 1) XDJ

Pattie-Lynn's utility function for total assets is, in which A represents total assets in thousands of dollars. (a) Graph Pattie-Lynn's utility function. How would y

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads "maximum capacity 1400kg or 20 persons". Suppose that the weights of lift-users are


Suppose the money supply process is now represented by the following function: where m measures the sensitivity of money supply with respect to the interest rate. (i) Us