ANALISIS ESTADISTICO- SESION I - TARDE - PARTICIPANTES.xlsx

ANALISIS ESTADISTICO- SESION I - TARDE - PARTICIPANTES.xlsx...

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1) Determinar la probabilidad p de los sig sucesos : a) Al lanzar un dado el resultado sea impar: 1 2 3 4 Formas q pue 3 pq hay solo tres imapres (1,3,5) No total de po 6 pq el dado tiene 6 lados P(X=3) = 3/6 0.50 b) Obtener una vez cara despues de haber sido lanzada dos veces una moneda P(X= Cara)= c) Obtener un AS, 10 de diamantes, o 2 de picas al sacar una carta de una baraja de 52 cartas P(A o B) = P(A)+ P(b) AS= Total AS en un 4 10 DiamantesTotal 10 diam 1 Total 2 picas 1 Total Baraja 51 P(x=AS)= 4/52 P(x=10 Dia)= 1/52 P(Ao B o C) = 4/52 +1/52+1/52 P(x= 2Pic)= 1/52 P(Ao B o C) = 11.5% d) Obtener un 7 como resultado de un lanzamiento de dos dados P(x=7) = 6/36 16.7% 1 (1-6) 2 (2-5) 3 (3-4) 4 (4-3) 5 (5-2) 6 (6-1) Cara Sello Cara Sello Sello Cara Cara , Cara Cara , Sello Sello , Cara Sello ,Sello
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2) Se saca un pinpon de una caja que contiene: Color Cantidad Pin pon Estime la probabilidad de q el pin pon extraido sea Rojos 6 a) Rojo P(X=rojo) 6/16 Blanco 4 Azul 6 b) Blanco P(X=blanco ) 4/16 Total 16 c) azul P(X=Azul ) 6/16 d) No rojo P( x= NO Rojo)= P( Azul o Blan e) Azul o BlanP(A o B)= P(A)+ P(B) 6/16 + 4/16 3) La siguiente tabla muestra el numero de PC vendidos diariamente por una tienda : # PCs # Dias P(x) P(x) Determine la probabilidad de q el # de PCs q se ven 0 12 =12/118 0.10 a) 2 PCs P(x= 2) 1 43 43/118 0.36 b) menos de 3P(X<3) 2 18 18/118 0.15 c) mas de 1 PP(X>1) 3 20 20/118 0.17 d) Por lo menP(X>=1) 4 25 25/118 0.21 10 118 a) 2 PCs P(x= 2)= 18/118 0.15 b) menos de 3P(X<3)= (12/118) + (4 0.62 c) mas de 1 PP(X>1) (18/118) + (2 0.53 d) Por lo menP(X>=1) 1 - P(x= 0) 0.90 Probabilidad P(A=Éxito) P(B=Éxito) P(C=Éxito) a) b) c)
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d) e) f) 5) Total 52 Total AS 4 Total Rey 4
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a) P(X=AS)= 4/52 0.077 b) P(X=Rey )= 4/52 0.077 c) P( As o Rey) = P(as) + P(rey) P( As o Rey) = (4/52 0.154 a) P(X= As) = 4/52 0.07692308 b) P( x= corazon)= 13/52 0.25 c) P (AS y Corazon) = 1/52 0.01923077 P( As o Corazon) = 4/52 +13/52 -1/52 P( As o Corazon) = 0.30769231 Rent Alta Cliente Nuevo 120 Cliente Antiguo 80 Total 200 a) P(X= Antiguo) 60.0% b) P(X=Rent baja) 50% c) P(C.Ant y Rbaja) 40% d) P(Rbaja/C.Ant) P(AYB) = 0.4 P(Antiguo) = 0.6 P(Rbaja/C.Ant) = 67% e) P(C.Nuevo / R.Baja) P( C.Nuevo y R.Baja)= 10% P( As o Corazon) = P(As) + P(Corazon) - P (AS y Corazon)
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P(R.Baja)= 50% P(C.Nuevo / R.Baja) 20%
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5 6 2/4 50%
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