MCQs on Correlation and Regression Analysis

Statistics MCQs on Correlation and Regression

A) 0 to 1 B) 0 to -1 C) -1 to 1 D) 1 to -10

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Question 1: The value of coecient of correlation lies between Question 2: If the scatter diagram is drawn the scatter points lie on a straight line then it indicate a) Skewness b) Perfect correlation c) No correlation d) None of the above

Question 3: In the model Y = mX + a,Y is also known as the: A) Predictor variable B) Independent variable C) Predicted (dependent) variable D) Explanatory variable

Question 4:

The regression equation is the line with slope a passing through A) The point (X, Y ) B) The point (x, y) C) The point (y, x) D) The point (Y , X )

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Question 5: If the regression equation is equal to Y

= 23.6 − 54.2X , then 23.6 is the  while -54.2 is the  of the regression line. A) Slope, intercept B) Intercept, slope C) Slope, regression coecient D) Radius, intercept

Question 6: The sample coecient of correlation A) Has the same sign as the slope, i.e. β B) Can range from -1.00 up to 2.00 C) Is also called Peterson's r. D) Can range from -3.00 up to 2.00 1

Muhammad Imdadullah

Statistics MCQs on Correlation and Regression

Question 7:

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If the equation of regression line is y = 5, then what result will you take out from it? A) The line passes through origin B) The line passes through (5, 0) C) The line is parallel to y-axis D) The line is parallel to x-axis

Question √8: Which of the following relationship holds

A) r13.2 = √ β13.2 × β31.2 B) r13.2 = √β12.3 × β21.3 C) r13.2 = β23.1 × β32.1 D) All of the above

Question 9:

In regression equation y = a + β x + e, both x and y variables are A) Random B) Fixed C) x is xed and y is random D) y is xed and x is random E) none of above

Question 10:

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If R2 is zero, that is no collinearity/ Multicollinearity, the variance ination factor (VIF) will be A) Zero B) One C) Two D) None of the above.

Question 11:

The method of least squares nds the best t line that  the error between observed and estimated points on the line A) Maximizes B) Minimizes C) Reduces to zero D) Approaches to innity Answers: 1) C 6) A 11) B

2) B 7) C

3) C 8) A

4) A 9) C

5) B 10) A

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