Question

Time Remaining : 0 h:39 m:24 s
8:
What is the value of SSx?y?:?dxdyd:
000
O (a2b2c2)/27
O (a²b²c2)/9
(abc)/27
O (a3b3c3)/27
Attachment​

Answer 1

Step-by-step explanation:

Let L

yx

be the line of regression of y on x.

Let the angle made by L

yx

with X-axis be θ.

Thus tangent of the angle made by L

yx

with X- axis is tanθ=0.6

But , slope of any line with X-axis is tanθ

θHowever, slope of L

yx

=b

yx

∴b

yx

=tanθ=0.6

But b

yx

=r

σ

x

σ

y

Therefore, 0.6=r

σ

x

2σ

x

(∵σ

y

=2σ

x

)

⇒2r=0.6

⇒r=0.3

Therefore, correlation coefficient between x and y is r=0.3