Correlation and Regression Quiz | Correlation and Regression Multiple Choice Questions with Answers

Questions

61 In scatter diagram, if most of the points lie in the first and third quadrants, then coefficient of correlation is:

A Negative

B Positive

C Zero

D All of the above

Answer: Positive

62 If one item is fixed and unchangeable and the other item varies, the correlation coefficient will be:

A Positive

B Negative

C Zero

D Undecided

Answer: Zero

63 If the points on the scatter diagram show no tendency either to increase together or decrease together the value of r will be close to:

A -1

B +1

C 0.5

D 0

Answer: 0

64 A regression model may be:

A Linear

B Non-linear

C Both (a) and (b)

D Neither (a) and (b)

Answer: Both (a) and (b)

65 If bxy = 0.20 and rxy = 0.50, then byx is equal to:

A 0.20

B 0.25

C 0.50

D 1.25

Answer: 1.25