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Question-1
1-
6∑ D
2
is the formula for computing _____________
n(n
2
-1)
(A)
Mean deviation
(B)
Karl-persons coefficient of correlation
(C)
rank correlation
(D)
linear regression
Question-2
Non-linear correlation is otherwise known as _________ correlation
(A)
Zero-order
(B)
curvilinear
(C)
positive correlation
(D)
none of these
Question-3
The co-efficient of correlation will have negative sign when :
(A)
X is increasing Y is decreasing
(B)
x and Y decreasing
(C)
X and Y increasing
(D)
no change in X or Y
Question-4
When the examine the relation ship between two variables, it is known as ________ correlation
(A)
Zero-order
(B)
curvilinear
(C)
simple
(D)
none of these
Question-5
When we examine the relationship between two variables and assume that other variables are constant, it is known as __________ correlation
(A)
Zero-order
(B)
partial
(C)
simple
(D)
multiple
Question-6
When the ratio of changes in variable is constant it is a case of __________ correlation
(A)
Zero-order
(B)
liner
(C)
positive
(D)
curvilinear
Question-7
Co-efficient of correlation ___________
(A)
Negative
(B)
positive
(C)
Positive or Negative
(D)
indeterminate
Question-8
If correlation between x and y is positive,. the algebraic sign of regression coefficients would be ___________
(A)
Negative
(B)
positive
(C)
positive or negative
(D)
indeterminate
Question-9
When two variable moves in the same direction it is called ______ correlation
(A)
Zero-order
(B)
negative
(C)
positive
(D)
none of these
Question-10
________ explains the change in one variable leading to the corresponding change in another variable
(A)
Central tendencies
(B)
dispersion
(C)
correlation
(D)
price index
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