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
In correlation, both variables are ______?
A. Random
B. Fixed
C. Non-random
D. Experimental
