Correlation and Regression Multiple Choice Questions and Answers

Questions

1 The independent variable is also called:

A Regressor

B Regressand

C Predictand

D Estimated

View Answer

Answer: Regressor

2 The dependent variable is also called:

A Regressand variable

B Predictand variable

C Explained variable

D All of these

View Answer

Answer: All of these

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3 The dependent variable is also called:

A Regression

B Regressand

C Continuous variable

D Independent

View Answer

Answer: Regressand

4 To determine the height of a person when his weight is given is:

A Correlation problem

B Association problem

C Regression problem

D Qualitative problem

View Answer

Answer: Regression problem

5 If one regression coefficient is greater than one, then other will he:

A More than one

B Equal to one

C Less than one

D Equal to minus one

View Answer

Answer: Less than one

6 If Y = 2 - 0.2X, then the value of Y intercept is equal to:

A -0.2

B 2

C 0.2X

D All of the above

View Answer

Answer: 2

7 If regression line of = 5, then value of regression coefficient of Y on X is:

A 0

B 0.5

C 1

D None of these

View Answer

Answer: 0

8 The straight line graph of the linear equation Y = a + bX, slope is horizontal if:

A b = 0

B b ≠ 0

C b = 1

D a = b

View Answer

Answer: b = 0

9 The straight line graph of the linear equation Y = a + bX, slope will be downward If:

A b > 0

B b < 0

C b = 0

D b ≠ 0

View Answer

Answer: b < 0

10 The straight line graph of the linear equation Y = a+ bX, slope will be upward if:

A b = 0

B b < 0

C b > 0

D b ≠ 0

View Answer

Answer: b > 0

11 If the value of any regression coefficient is zero, then two variables are:

A Qualitative

B Correlation

C Dependent

D Independent

View Answer

Answer: Independent

12 In simple regression equation, the numbers of variables involved are:

A 0

B 1

C 2

D 3

View Answer

Answer: 2

13 In simple linear regression, the numbers of unknown constants are:

A One

B Two

C Three

D Four

View Answer

Answer: Two

14 The slope of the regression line of Y on X is also called the:

A Correlation coefficient of X on Y

B Correlation coefficient of Y on X

C Regression coefficient of X on Y

D Regression coefficient of Y on X

View Answer

Answer: Regression coefficient of Y on X

15 The predicted rate of response of the dependent variable to changes in the independent variable is called:

A Slope

B Intercept

C Error

D Regression equation

View Answer

Answer: Slope

16 The value we would predict for the dependent variable when the independent variables are all equal to zero is called:

A Slope

B Sum of residual

C Intercept

D Difficult to tell

View Answer

Answer: Intercept

17 All data points falling along a straight line is called:

A Linear relationship

B Non linear relationship

C Residual

D Scatter diagram

View Answer

Answer: Linear relationship

18 A relationship where the flow of the data points is best represented by a curve is called:

A Linear relationship

B Nonlinear relationship

C Linear positive

D Linear negative

View Answer

Answer: Linear relationship

19 The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the lie is:

A Maximum

B Minimum

C Zero

D Positive

View Answer

Answer: Minimum

20 A process by which we estimate the value of dependent variable on the basis of one or more independent variables is called:

A Correlation

B Regression

C Residual

D Slope

View Answer

Answer: Regression

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