sample linear regression mcqs to prepare for nts,kppsc,fpsc,ppsc and more | mcqpk.com

sample linear regression Mcqs

1. If x = 3 then value of regression co-efficient of X or Y is ________________?
0

A. -3

B. (0)

C. -4

D. -3

2. A model is linear if it is linear in the dependent variable and also in ______________?
0

A. Independent variable

B. Parameter

C. Non of these

D. Error term

3. Correlation coefficient lies between__________________?
0

A. -1 ? r ? 1

B. 1 ? r ? 0

C. 0 ? r ? 1

D. 0 ? r ? -1

4. Regression co-efficient is denoted by_____________?
0

A. byx

B. by

C. bzx

D. m

5. The regression co-efficient are _________ origin?
0

A. Dependent

B. Both

C. Scale

D. Independent

6. Response variable is a_________?
0

A. Fixed

B. Random variable

C. Whole

D. None of above

7. Attributes are _______ if they have some relation?
0

A. None of these

B. In consistent

C. Disassociation

D. Associated

8. If y = 2 + 6x then value of y intercept is _________________?
0

A. None

B. 2

C. 6

D. 0

9. In correlation, both variables are______________?
0

A. Non-random

B. Experimental

C. Random

D. Fixed

10. To cut a population into three classes is called_______________?
0

A. Attribute

B. Tracheotomy

C. Capital

D. Dichotomy

11. If bxy = -.8 by x = 1.2 then value of r is ________________?
0

A. 0

B. ?.96

C. ?-.96

D. None of these

12. Correlation is _____________ of regression coefficients?
0

A. H.M.

B. M.D.

C. G.M.

D. A.M.

13. When the two regression lines coincide there r is __________________?
0

A. Less than zero

B. More than zero

C. Great

D. Zero

14. If x and y are Independent to each other the coefficient of correlation is _____________?
0

A. 0.6

B. -1

C. 1

D. 0

15. Which of the following can never be taken as coefficient of correlation is _____________?
0

A. ?3

B. -99

C. 0.99

D. 0

16. Least square regression line always passes through ____________________?
0

A. (X,Z)

B. x/y

C. (x,y)

D. (X,Y)

17. The two regression co-efficient always have the __________ sign?
0

A. None of these

B. Same

C. #NAME?

D. Different

18. Correlation coefficient is _________ of origin and unit of measurement?
0

A. Independence

B. None

C. Dependence

D. Origin

19. The word regression was first founded by_________?
0

A. Neyman person

B. Karl Pearson

C. Sir F Galton

D. R A Fisher

20. In x = 2 _________ 6y the value of y are increasing by one unit then values of x are?
0

A. Increasing by 6

B. No change

C. Decreasing by 6

D. Non of these

21. If bxy = byx = r then ________________?
0

A. 6x = 6y

B. 6x < 6y

C. Non of These

D. 6y < 6x

22. Richness is not a ________________?
0

A. Continuous

B. Discreade

C. Variable

D. Constant

23. If (AB) >(A) (B)/n __________ then A and B are?
0

A. Independent

B. Dis-associated

C. None of these

D. Associated

24. ?xy is always equal to_____________?
0

A. ?x

B. #NAME?

C. ?yx

D. ?o2

25. In perfect association the value of coefficient of association is ______________?
0

A. non of these

B. +1

C. -1

D. 0

26. In r x c table for test of Independence the degree of freedom is _____________?
0

A. (r -1) (c -1)

B. r + c

C. ? r c ?

D. rc

27. If r, between u = x and y = -x is _______________?
0

A. 0

B. -1

C. Non of these

D. 1

28. (A ? C) is a frequency of attributes of order_______________?
0

A. -2

B. 1

D. 3

29. The table representing two attributes is called________________?
0

A. Dichotomy table

B. Chi-square table

C. Random table

D. Contingency table

30. Two attributes are associated if expected frequency is ____________________?
0

A. Greater than observed

B. Less than observed

C. Equal to observed

D. None of these

31. Correlation coefficient is ___________ with respect to x and y?
0

A. Non-normal

B. #NAME?

C. Symmetrical

D. Skewed

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