Advertisements
Advertisements
Question
Define Regression.
Advertisements
Solution
The term ‘Regression’ was first coined and used in 1877 by Francis Galton while studying the relationship between the height of fathers and sons. The average height of children born of parents of a given height tended to move or “regress” toward the average height in the population as a whole. Gabon’s law of universal regression was confirmed by his friend Karl Pearson, who collected more than a thousand records of heights of members of family groups. The literal meaning of the word “regression” is “Stepping back towards the average”.
APPEARS IN
RELATED QUESTIONS
Choose the correct alternative:
We can estimate the value of one variable with the help of other known variable only if they are
Choose the correct alternative.
In the regression equation of Y on X
Choose the correct alternative:
In the regression equation of X on Y
Choose the correct alternative.
bXY is _____
bxy and byx are _______.
Choose the correct alternative.
Corr `("x - a"/"c", "y - b"/"d")` = - corr (x, y) if,
State whether the following statement is True or False:
The variable used for predicting the response is called the independent variable
Dependent variables are also known as ______
The term regression was used by:
A process by which we estimate the value of dependent variable on the basis of one or more independent variables is called:
In the regression equation Y = β0 +β1 X, the Y is called:
The term Uiin regression equation is a ______.
Find the regression equation Y on X and X on Y for the following data:
| Y | 45 | 48 | 50 | 55 | 65 | 70 | 75 | 72 | 80 | 85 |
| X | 25 | 30 | 35 | 30 | 40 | 50 | 45 | 55 | 60 | 65 |
Regression mainly occurs when a person is experiencing______.
