A. (x,y)
B. (X,Y)
C. (X,Z)
D. x/y
Sample Linear Regression Mcqs
The regression co-efficient are ……… origin?
A. Dependent
B. Independent
C. Scale
D. Both
When the two regression lines coincide there r is ………………?
A. Zero
B. Less than zero
C. More than zero
D. Great
Regression co-efficient is denoted by………….?
A. by
B. byx
C. bzx
D. m
Correlation coefficient lies between………………?
A. 0 ≤ r ≤ 1
B. 0 ≤ r ≤ -1
C. -1 ≤ r ≤ 1
D. 1 ≤ r ≤ 0
Which of the following can never be taken as coefficient of correlation is ………….?
A. -99
B. .99
C. 0
D. √3
If r, between u = x and y = -x is ……………?
A. +1
B. -1
C. 0
D. Non of these
The two regression co-efficient always have the ………. sign?
A. Different
B. Same
C. None of these
D. +ve
A model is linear if it is linear in the dependent variable and also in …………..?
A. Parameter
B. Independent variable
C. Error term
D. Non of these
If y = 2 + 6x then value of y intercept is ……………..?
A. 6
B. 2
C. 0
D. None