Question 1

For perfect correlation, the coefficient of correlation should be ..........................

Accepted Answer

A) ± 1 
B) + 1 
C) - 1 
D) 0 
A) ± 1 
B) + 1 
C) - 1 
D) 0 A

Question 2

If r = 0.8, coefficient of determination is.....................................

Accepted Answer

A) 80% 
B) 8% 
C) 64% 
D) 0.8% 
A) 80% 
B) 8% 
C) 64% 
D) 0.8% C

Question 3

Spearman's Rank Correlation Coefficient is usually denoted by....................

Accepted Answer

A) K 
B) r 
C) S 
D) R 
A) K 
B) r 
C) S 
D) R D

Question 4

If coefficient of correlation is more than ................of its P E, correlation is significant.

Accepted Answer

A) 2 times 
B) 5 times 
C) 6 times 
D) 10 times 
A) 2 times 
B) 5 times 
C) 6 times 
D) 10 times

Question 5

If there are two variables, there can be at most ........................ number of regression lines.

Accepted Answer

A) One 
B) Two 
C) Three 
D) Infinite 
A) One 
B) Two 
C) Three 
D) Infinite

Question 6

The point of intersection of two regression lines is..........................

Accepted Answer

A) (0,0) 
B) (1,1) 
C) (x,y) 
D) (x? , ?) 
A) (0,0) 
B) (1,1) 
C) (x,y) 
D) (x? , ?)

Question 7

In correlation analysis, Probable Error = ........................ x 0.6745

Accepted Answer

A) Standard deviation 
B) Standard error 
C) Coefficient of correlation 
D) None of these 
A) Standard deviation 
B) Standard error 
C) Coefficient of correlation 
D) None of these

Question 8

Coefficient of concurrent deviation depends on .......................

Accepted Answer

A) The signs of the deviations 
B) The magnitude of the deviations 
C) Bothe a and b 
D) None of these 
A) The signs of the deviations 
B) The magnitude of the deviations 
C) Bothe a and b 
D) None of these

Question 9

Correlation analysis between two sets of data only is called....................

Accepted Answer

A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation 
A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation

Question 10

Probable error is used to:

Accepted Answer

A) Test the reliability of correlation coefficient 
B) Measure the error in correlation coefficient 
C) Both a an b 
D) None of these 
A) Test the reliability of correlation coefficient 
B) Measure the error in correlation coefficient 
C) Both a an b 
D) None of these

Question 11

Correlation analysis between one dependent variable with one independent variable by keeping the other independent variables as constant is called......................

Accepted Answer

A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation 
A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation

Question 12

Coefficient of correlation explains .................... of the relationship between two variables.

Accepted Answer

A) Degree 
B) Direction 
C) Both of the above 
D) None of the above 
A) Degree 
B) Direction 
C) Both of the above 
D) None of the above

Question 13

The rank correlation coefficient is always............................

Accepted Answer

A) + 1 
B) - 1 
C) 0 
D) Between + 1 and - 1 
A) + 1 
B) - 1 
C) 0 
D) Between + 1 and - 1

Question 14

....................refers to analysis of average relationship between two variables to provide mechanism for prediction.

Accepted Answer

A) Correlation 
B) Regression 
C) Standard error 
D) None of these 
A) Correlation 
B) Regression 
C) Standard error 
D) None of these

Question 15

Regression line is also called.................................

Accepted Answer

A) Estimating equation 
B) Prediction equation 
C) Line of average relationship 
D) All the above 
A) Estimating equation 
B) Prediction equation 
C) Line of average relationship 
D) All the above

Question 16

The term regression was first used by..........................

Accepted Answer

A) Karl Pearson 
B) Spearman 
C) R A Fisher 
D) Francis Galton 
A) Karl Pearson 
B) Spearman 
C) R A Fisher 
D) Francis Galton

Question 17

Study of correlation among three or more variables simultaneously is called.............

Accepted Answer

A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation 
A) Partial correlation 
B) Multiple correlation 
C) Nonsense correlation 
D) Simple correlation

For perfect correlation, the coefficient of correlation should be ..........................

If r = 0.8, coefficient of determination is.....................................

Spearman's Rank Correlation Coefficient is usually denoted by....................

If coefficient of correlation is more than ................of its P E, correlation is significant.

If there are two variables, there can be at most ........................ number of regression lines.

The point of intersection of two regression lines is..........................

In correlation analysis, Probable Error = ........................ x 0.6745

Coefficient of concurrent deviation depends on .......................

Correlation analysis between two sets of data only is called....................

Probable error is used to:

Correlation analysis between one dependent variable with one independent variable by keeping the other independent variables as constant is called......................

Coefficient of correlation explains .................... of the relationship between two variables.

The rank correlation coefficient is always............................

....................refers to analysis of average relationship between two variables to provide mechanism for prediction.

Regression line is also called.................................

The term regression was first used by..........................

Study of correlation among three or more variables simultaneously is called.............

Correlation Analysis and Coefficient of Correlation

Regression and Hypothesis Testing

Hypothesis Testing and Statistical Errors

Statistics and Quality Control

Statistics and Statistical Analysis

Statistics and Probability

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

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Exam 2: Correlation and Regression Analysis

For perfect correlation, the coefficient of correlation should be ..........................

If r = 0.8, coefficient of determination is.....................................

Spearman's Rank Correlation Coefficient is usually denoted by....................

If coefficient of correlation is more than ................of its P E, correlation is significant.

If there are two variables, there can be at most ........................ number of regression lines.

The point of intersection of two regression lines is..........................

In correlation analysis, Probable Error = ........................ x 0.6745

Coefficient of concurrent deviation depends on .......................

Correlation analysis between two sets of data only is called....................

Probable error is used to:

Correlation analysis between one dependent variable with one independent variable by keeping the other independent variables as constant is called......................

Coefficient of correlation explains .................... of the relationship between two variables.

The rank correlation coefficient is always............................

....................refers to analysis of average relationship between two variables to provide mechanism for prediction.

Regression line is also called.................................

The term regression was first used by..........................

Study of correlation among three or more variables simultaneously is called.............

Correlation Analysis and Coefficient of Correlation

Regression and Hypothesis Testing

Hypothesis Testing and Statistical Errors

Statistics and Quality Control

Statistics and Statistical Analysis

Statistics and Probability

Probability, Correlation, and Index Numbers in Statistics

Time Series and Index Numbers in Business and Economics

Matrix Operations and Time Series Analysis

Fundamentals of Calculus

Filters