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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
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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

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