Regression Analysis Concepts

Regression Equations

Correlation Coefficient

Probability Theory

Statistical Inference

Regression equation of y on x

Standard deviation

Regression equation of x on y

Correlation coefficient

summation x y by summation y square

r times summation x by summation y

r times summation y by summation x

summation x y by summation x square

Mean

Standard deviation

Correlation coefficient

Regression coefficient

Summation x divided by n

Summation x y divided by n

Summation x square divided by n

Summation y divided by n

1

0

2

-2

27

40

90

15

y = 2.7 x - 0.1

x = 2.7 y + 0.6

y = 0.3 x - 0.1

x = 0.3 y + 0.6

2.7

1.5

0.9

0.3