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12 Commerce
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Linear Regression
Study Simplify Special
Q4
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Q5
The regression line always passes through which point?
Regression Coefficient
Study Simplify Special
1
MCQ
Question 4
Which of the following is correct?
A
b
y
x
=
r
⋅
s
y
2
s
x
2
b_{yx} = r \cdot \frac{s_y^2}{s_x^2}
b
y
x
=
r
⋅
s
x
2
s
y
2
B
b
y
x
=
C
o
v
(
x
,
y
)
s
y
2
b_{yx} = \frac{Cov(x, y)}{s_y^2}
b
y
x
=
s
y
2
C
o
v
(
x
,
y
)
C
b
y
x
=
r
⋅
s
y
s
x
b_{yx} = r \cdot \frac{s_y}{s_x}
b
y
x
=
r
⋅
s
x
s
y
D
b
y
x
=
r
⋅
s
x
s
y
b_{yx} = r \cdot \frac{s_x}{s_y}
b
y
x
=
r
⋅
s
y
s
x
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