Question
Asked Nov 6, 2019
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Find the regression line for the data points.

 x       
 
1   1
2   6
3   8
4   12

 

 

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Expert Answer

Step 1

Consider the given data.

First find Σ ΧΣΥ. Σ x.Υ, Σχ? for the given data
ΣΧ ΣΥ | ΣΧ.Υ | Σχ
1
1
1
1
2
6
12
4
24
3
8
9
4
12
48
16
Σx-10 ΣΥ =27, Σ x.Y - 35, Σχ -30
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First find Σ ΧΣΥ. Σ x.Υ, Σχ? for the given data ΣΧ ΣΥ | ΣΧ.Υ | Σχ 1 1 1 1 2 6 12 4 24 3 8 9 4 12 48 16 Σx-10 ΣΥ =27, Σ x.Y - 35, Σχ -30

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Step 2

The equation for the linear...

y a+bx
Where,
ΣΥΣΧΣΧ.Σχ.
.Σχ-(Σχ)'
ηΣ -ΣΧ.Στ
and b
а —
a
n-Σχ-Σ )
Then,
27x30-10x85
-2
4x30-(10)
4x85-10x27
=3.5
4x30-(10)
help_outline

Image Transcriptionclose

y a+bx Where, ΣΥΣΧΣΧ.Σχ. .Σχ-(Σχ)' ηΣ -ΣΧ.Στ and b а — a n-Σχ-Σ ) Then, 27x30-10x85 -2 4x30-(10) 4x85-10x27 =3.5 4x30-(10)

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