28/04/10
Potrero ua y1 y-y1 (y-y)2
12 9 8.9344 0.0656 0.0043
9 7 7.0432 0.0432 0.0018
14 10 10.1952 0.1952 0.0381
6 5 5.152 0.152 0.0231
10 8 7.6736 0.3264 0.1065
∑x=51 ∑=39 ∑y1=38.9984 ∑y-y10.0016 ∑y-y1=0.1738
Y-Ỹ
Ỹ= ∑Y=39
N Y- Ỹ=9-7.8
Y- Ỹ (Y- Ỹ)2 ∑(Y-Y)2= 0.1738/5=0.0347
1.2 1.44 S2=0.0347
-0.8 0.64 S2=0.1862
2.2 4.84
-2.8 7.84
0.2 0.04
∑Y- Ỹ=0.3 ∑(Y- Ỹ)2=14.8
S2 =∑(Y- Ỹ)2
N
S2=014.8= √2.96
5
S=1.7204
VARIACION TOTAL
R2= ∑(Y- Ỹ)2- ∑(Y-Y)2
∑ (Y- Ỹ)2
R=14.8-0.1738=0.9882
14.8
lunes, 17 de mayo de 2010
Mvz del centro maya de estudios agropecuarios esta estudiando la relación entre el numero de potreros en cinco ranchos de la localidad y las unidad de animal en potrero
a) Dibuje un diagrama de dispersión
b) Calcule el coeficente de correlacion
c) Determine la ecuación de regresión
d) Determine el numero de u.a para un rancho con seis potreros
X y x2 y2 xy
Potreros u.a
12 9 144 81 108
9 7 81 49 63
14 10 196 100 140
6 5 36 25 30
10 8 100 64 80
∑x=51 ∑y=39 ∑x2=557 ∑y2=319 ∑xy=421
Sustitución
R=5(421)-(51)(39)
√5[(557)-(51)2][5(319)-(39)2]
R=2105-1989
√(2785-2601)(1595-1521)
R=116
√184-74
116
√13616
R=116
116.6876
R=0.9941
b) n(∑xy)-( ∑x)( ∑y)
n(∑x2)( ∑y2)
b=5(421)-(51)(39)
5(5579)-(51)2
B=2105-1989
2785-2601
B=116
184 =0.638
A=∑Y-B∑X
N N
A=39(0.630)51
5 5
A=7.8-6.426
A=1.374
Y=a+bx
Y=1.374 +0.630(6)=3.78
Y=5.154
26/04/10
R2 = erre al cuadrado
R2=0
R2=+1=0.81
R2=-1
Coeficiente de correlacion
R=n∑xy-∑x∑y
√[n∑x2-(∑x)2][n(∑y2)-( ∑y)2]
Y=a+bx
Sustitución
R= 10(10800)-(220)(450)
√[10(5600)-(220)2][10(22100)-(450)2]
R=10800-99000
√10(5600)-(220)2[(10)(22100)-(450)2]
√[(5600)-(48400)][(221000)-(202300)]
R=9000
√(7600)-(18500)
9000
11857.48709
R=0.759
R2=0
R2=+1=0.81
R2=-1
Coeficiente de correlacion
R=n∑xy-∑x∑y
√[n∑x2-(∑x)2][n(∑y2)-( ∑y)2]
Y=a+bx
Sustitución
R= 10(10800)-(220)(450)
√[10(5600)-(220)2][10(22100)-(450)2]
R=10800-99000
√10(5600)-(220)2[(10)(22100)-(450)2]
√[(5600)-(48400)][(221000)-(202300)]
R=9000
√(7600)-(18500)
9000
11857.48709
R=0.759
16/04/10
X Y X2 Y2 XY
2.1- 3.5- 4.41- 12.25- 7.35
2.4- 3.1- 5.76- 9.61- 7.344
3.5- 3.4- 12.25- 11.26- 11.9
3.7- 3.7- 13.69- 13.69- 13.69
4.5- 3.8- 20.25- 14.431- 17.1
5.0- 3.7- 25- 13.69- 18.5
5.1- 3.9- 26.01- 15.21- 19.89
5.2- 4.1- 27.04- 16.81- 21.32
5.4- 3.9- 29.16- 15.21- 21.06
5.7- 4.4- 32.49- 19.36- 25.08
∑=42.6 ∑=37.6 ∑=196.06 ∑=141.83 ∑=163.234
DATOS
N=10
∑XY=163.234
∑X2=196.06
∑X=42.6
∑Y2 =141.83
SUSTITUCION
B=10(163.234)-(42.6)(37.6)
10(196.06)-(42.6)2
B= 1633.34-1597.5
1960.8- 1814.76
B=35.28
146.04
B=0.2436
A=∑Y-B∑X
N N
A=37.6-(0.2436)*42.6
10 10
A=3.76-1.0377 A=2.7232
Y=A+BX
Y=2.7232+0.2436 (6.4)=1.5590
Y=2.7232+1.5590=4.2813
2.1- 3.5- 4.41- 12.25- 7.35
2.4- 3.1- 5.76- 9.61- 7.344
3.5- 3.4- 12.25- 11.26- 11.9
3.7- 3.7- 13.69- 13.69- 13.69
4.5- 3.8- 20.25- 14.431- 17.1
5.0- 3.7- 25- 13.69- 18.5
5.1- 3.9- 26.01- 15.21- 19.89
5.2- 4.1- 27.04- 16.81- 21.32
5.4- 3.9- 29.16- 15.21- 21.06
5.7- 4.4- 32.49- 19.36- 25.08
∑=42.6 ∑=37.6 ∑=196.06 ∑=141.83 ∑=163.234
DATOS
N=10
∑XY=163.234
∑X2=196.06
∑X=42.6
∑Y2 =141.83
SUSTITUCION
B=10(163.234)-(42.6)(37.6)
10(196.06)-(42.6)2
B= 1633.34-1597.5
1960.8- 1814.76
B=35.28
146.04
B=0.2436
A=∑Y-B∑X
N N
A=37.6-(0.2436)*42.6
10 10
A=3.76-1.0377 A=2.7232
Y=A+BX
Y=2.7232+0.2436 (6.4)=1.5590
Y=2.7232+1.5590=4.2813
B.H
G 0.25M2
X1 =220
X2 =223
X3 =240
X4 =180
X5 =190
U.A=1.82
%M.S 23%
DATOS
∑=1.053 KG
819 KG P. V
1.82 UA-----X450
R=819KG P. V
_____1.25M2
PASO 1 CONSUMO DIARIO DE 3 %
819 KG----100%
X-----3%
X=24.57 KG
PASO 2 PRODUCCION DE FORRAJE
1053-----1.25M2
X-----1M
X=0.84KG
0.84KG----100%
X-------------3%
X=0.1932KG/MS/M2
PASO 3
ASIGNADO POR DIA
0.9932----1M2
24.57K----X
X=12.17M2X DIA
PASO 4
127.17M2* 3
X=381.51M2
G 0.25M2
X1 =220
X2 =223
X3 =240
X4 =180
X5 =190
U.A=1.82
%M.S 23%
DATOS
∑=1.053 KG
819 KG P. V
1.82 UA-----X450
R=819KG P. V
_____1.25M2
PASO 1 CONSUMO DIARIO DE 3 %
819 KG----100%
X-----3%
X=24.57 KG
PASO 2 PRODUCCION DE FORRAJE
1053-----1.25M2
X-----1M
X=0.84KG
0.84KG----100%
X-------------3%
X=0.1932KG/MS/M2
PASO 3
ASIGNADO POR DIA
0.9932----1M2
24.57K----X
X=12.17M2X DIA
PASO 4
127.17M2* 3
X=381.51M2
Razonamiento matemático
BASE HUMEDA G/0.25M2
X1 48
X2 170
X3 125
X4 135
X5 100
X6 90
X7 137
X8 120
X9 11
X10 88
¿Cuántos METROS CUADRADOS DE PRADERA DEBO ASIGNAR DIARIAMENTE A 1000KG P.V. DE BORREGOS
1HA-----10000
X----0.25 =0.000025
1000KG----0.00025
1H----100%
X-----3% =30KG
10 * 0.25M2 =2.5M2
1HA----10000M2
X---2.5M2 = 120.00025HA
0.00025HA----1124KG
1HA-------X =4496KG/HA
4496 * 0.3 =1348.8KG/HA
148.8 KG----1HA
30KG----X
X=0.022HA
10000M2------1HA
X----------0.022HA
X=222.420M2
PASO 1 CONSUMO DIARIO BORREGO CONSUME 3% P.V DIAS/M.S
1000K---100%
X--------3% R= 30KG
PASO 2 PRODUCCION DE FORRAJE B.H/M2
1.124KG---2.5M2
X--------1M2 R=0.4496KG
0.4496KG-----100%
0.13488KG-----30%
R=0.13488KGM.S/M2
PASO 3 M2 ASIGNADO AL DIA
0.13488KG---------1M
30 KG
R=222.419M2
BASE HUMEDA G/0.25M2
X1 48
X2 170
X3 125
X4 135
X5 100
X6 90
X7 137
X8 120
X9 11
X10 88
¿Cuántos METROS CUADRADOS DE PRADERA DEBO ASIGNAR DIARIAMENTE A 1000KG P.V. DE BORREGOS
1HA-----10000
X----0.25 =0.000025
1000KG----0.00025
1H----100%
X-----3% =30KG
10 * 0.25M2 =2.5M2
1HA----10000M2
X---2.5M2 = 120.00025HA
0.00025HA----1124KG
1HA-------X =4496KG/HA
4496 * 0.3 =1348.8KG/HA
148.8 KG----1HA
30KG----X
X=0.022HA
10000M2------1HA
X----------0.022HA
X=222.420M2
PASO 1 CONSUMO DIARIO BORREGO CONSUME 3% P.V DIAS/M.S
1000K---100%
X--------3% R= 30KG
PASO 2 PRODUCCION DE FORRAJE B.H/M2
1.124KG---2.5M2
X--------1M2 R=0.4496KG
0.4496KG-----100%
0.13488KG-----30%
R=0.13488KGM.S/M2
PASO 3 M2 ASIGNADO AL DIA
0.13488KG---------1M
30 KG
R=222.419M2
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