Mathematics>Statistics and Probability>Statistics>Regression

EASY

Earn 100

Difference between linear and non-linear regression.

Important Questions on Statistics

EASY

Mathematics>Statistics and Probability>Statistics>Regression

If the two lines of regression are

4 x + 3 y + 7 = 0

and

3 x + 4 y + 8 = 0

, then the means of

x

and

y

are

MEDIUM

Mathematics>Statistics and Probability>Statistics>Regression

If two lines of regression are

3 x + 12 y = 19

and

9 x + 3 y = 46

, then the value of

r_{x y}

will be

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Distinguish between linear and non-linear regression.

EASY

Mathematics>Statistics and Probability>Statistics>Regression

If

b_{x y} > 1

, then

b_{y x}

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

_____ is the Father of mental tests

EASY

Mathematics>Statistics and Probability>Statistics>Regression

What are the types of regression?

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Find the relation between regression coefficient

b_{y x}

and correlation coefficient.

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Given the following data, estimate the marks in statistics obtained by a student who has scored

60

marks in English. Mean of marks in Statistics

= 80

, Mean of marks in English

= 50

, S.D of marks in Statistics

= 15

, S.D of marks in English

= 10

and Coefficient of correlation

= 0.4

.

EASY

Mathematics>Statistics and Probability>Statistics>Regression

______ is widely used for prediction.

EASY

Mathematics>Statistics and Probability>Statistics>Regression

For the regression equation

2 Y = 0.605 X + 351.58

. The regression coefficient of

Y

on

X

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Regression equation of

X

on

Y

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

If

b_{X Y} = 0.7

and

a = 8

, then the regression equation of

X

on

Y

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Define simple linear and multiple linear regressions

EASY

Mathematics>Statistics and Probability>Statistics>Regression

In the regression equation

(y - \bar{y}) = r_{x y} \frac{S D (Y)}{S D (X)} (x - \bar{x})

,

r_{x y} \frac{S D (Y)}{S D (X)}

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

Define regression.

EASY

Mathematics>Statistics and Probability>Statistics>Regression

The linear equation

Y = a + b x

is called as regression equation of

EASY

Mathematics>Statistics and Probability>Statistics>Regression

. Write the two simple linear regression equations

EASY

Mathematics>Statistics and Probability>Statistics>Regression

If the two regression lines are parallel then

EASY

Mathematics>Statistics and Probability>Statistics>Regression

In regression equation

X = a + b Y + e

,

b

is

EASY

Mathematics>Statistics and Probability>Statistics>Regression

The linear regression analysis can be classified in to