Calculate b0 value and Mean Absolute Error!
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Topic Video
Question
Calculate b0 value and
![H21
fx
N
X2*X2
A
B
E
H
K
L
M
Q
R
S
U
Score(Y) X1*Y
1 0.555556
1 Age
NumberofCards
Age(X1)
Income(X2) NumberofCards(X3)
X2*Y
X3*Y
X1*X1
X3*X3
v'
Income
Score
2
35
35
3
90
0.555556
0.175
0.75
0.175
0.75 0.308642 0.030625
0.5625
0.5 0.222222 0.077601 0.055556 0.111111 0.121945
0.25 0.333333 0.333333 0.333333 0.083333
3
22
50
2
20
0.349206
0.25
0.0625
0.25
4
63
200
1
30
1
1
1
0.0625
5
59
170
1
10
0.936508
0.85
0.25 0.111111 0.104056 0.094444 0.027778 0.877047
0.7225
0.0625
6
25
40
4
80
0.396825
0.2
1 0.888889 0.352734 0.177778 0.888889
0.15747
0.04
1
41
99
2
46
0.650794
0.495
0.5 0.511111 0.332628
0.253 0.255556 0.423532 0.245025
0.25
8
0.648148
0.495
0.541666667 0.511111 1.755908 1.089111 2.116667 2.888637 2.10065
2.1875
9
10
11
12
Y = bo + bị X
13
14
b1=
-0.231746
-0.629640616
15
0.3680608
-n XY + Eo XiYi
b1 =
-n XX + ΣL Xi i
Li=o
16 Y = b0 + b1X1+b2X2+b3X3
17
b2=
-0.4288889
1.021343652
18
-0.4199261
bo = Y – bị X
19
20
b3=
0.45555556
1.066666667
21
0.42708333
Mean Absolute Error = ( 1/ n) * E-o [Ai – Fi|
22
i3D0
23
24
25
26
27
28
29
30
31
32](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc1e89002-15b0-473c-97b3-b07dbaff8ef8%2Fef64f56f-9075-4db5-a945-e96d22f4a412%2Ffb13tju_processed.png&w=3840&q=75)
Transcribed Image Text:H21
fx
N
X2*X2
A
B
E
H
K
L
M
Q
R
S
U
Score(Y) X1*Y
1 0.555556
1 Age
NumberofCards
Age(X1)
Income(X2) NumberofCards(X3)
X2*Y
X3*Y
X1*X1
X3*X3
v'
Income
Score
2
35
35
3
90
0.555556
0.175
0.75
0.175
0.75 0.308642 0.030625
0.5625
0.5 0.222222 0.077601 0.055556 0.111111 0.121945
0.25 0.333333 0.333333 0.333333 0.083333
3
22
50
2
20
0.349206
0.25
0.0625
0.25
4
63
200
1
30
1
1
1
0.0625
5
59
170
1
10
0.936508
0.85
0.25 0.111111 0.104056 0.094444 0.027778 0.877047
0.7225
0.0625
6
25
40
4
80
0.396825
0.2
1 0.888889 0.352734 0.177778 0.888889
0.15747
0.04
1
41
99
2
46
0.650794
0.495
0.5 0.511111 0.332628
0.253 0.255556 0.423532 0.245025
0.25
8
0.648148
0.495
0.541666667 0.511111 1.755908 1.089111 2.116667 2.888637 2.10065
2.1875
9
10
11
12
Y = bo + bị X
13
14
b1=
-0.231746
-0.629640616
15
0.3680608
-n XY + Eo XiYi
b1 =
-n XX + ΣL Xi i
Li=o
16 Y = b0 + b1X1+b2X2+b3X3
17
b2=
-0.4288889
1.021343652
18
-0.4199261
bo = Y – bị X
19
20
b3=
0.45555556
1.066666667
21
0.42708333
Mean Absolute Error = ( 1/ n) * E-o [Ai – Fi|
22
i3D0
23
24
25
26
27
28
29
30
31
32
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