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REPUBLICA BOLIVARIANA DE VENEZUELA
MINISTERIO DEL PODER POPULAR PARA LA EDUCACION
I.U.T “ANTONIO JOSE DE SUCRE”
BARQUISIMETO, EDO-LARA
INTEGRANTES:
ROSANGELA HERNANDEZ 22.726.867
INES MELEAN 18.135.702
ROXI OLLARVES 19.165.504
YERLY VELAZCO 20.925.758
ESTADISTICA
ESCUELA 71
EJERCICIOS
1) Una bolsa contiene 3 fichas blancas y 2 verdes si se escogen dos fichas al azar y sin
devolución. Cuál es la probabilidad de que:
a) ambas sean verdes
b) ambas sean blancas
c) la primera sea blanca y la segunda verde.
Solución
A= fichas blancas
B=fichas verdes
P(A)=3/5=0.6
P(B)=2/5=0.4
E=espacio muestral.
E= {AA, AB, BA, BB}
Como es sin devolución debo tener claro eso
P(AA)=(3/5)(2/4)=6/20=0.3
-Entonces la probabilidad de ambas fichas sean blancas es 30%
b)P(B)=(2/5)(1/4)=(2/20)=0.1
-Entonces la probabilidad de ambas fichas sean verdes es 10%
2) Se extrae una bola de una urna que contiene 4 bolas rojas, 5 blancas y 6 negras ¿Cuál es la
probabilidad de que la bola sea roja o blanca? ¿Cuál es la probabilidad de que no sea blanca?
A=bolas rojas
B=bolas blancas
C=bolas negras
Solución
P(A)=4/15=0.26 esta es la probabilidad de que las bolas sean rojas
P (B)=5/15=0.33 esta es la probabilidad de que las bolas sean blancas
P(C)=6/15=0.4 esta es la probabilidad de que las bolas sean negras
P (B) =1-0.33=0.77 entonces la probabilidad de que no sea blanca es 77%

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Saia estadistica

  • 1. REPUBLICA BOLIVARIANA DE VENEZUELA MINISTERIO DEL PODER POPULAR PARA LA EDUCACION I.U.T “ANTONIO JOSE DE SUCRE” BARQUISIMETO, EDO-LARA INTEGRANTES: ROSANGELA HERNANDEZ 22.726.867 INES MELEAN 18.135.702 ROXI OLLARVES 19.165.504 YERLY VELAZCO 20.925.758 ESTADISTICA ESCUELA 71
  • 2. EJERCICIOS 1) Una bolsa contiene 3 fichas blancas y 2 verdes si se escogen dos fichas al azar y sin devolución. Cuál es la probabilidad de que: a) ambas sean verdes b) ambas sean blancas c) la primera sea blanca y la segunda verde. Solución A= fichas blancas B=fichas verdes P(A)=3/5=0.6 P(B)=2/5=0.4 E=espacio muestral. E= {AA, AB, BA, BB} Como es sin devolución debo tener claro eso P(AA)=(3/5)(2/4)=6/20=0.3 -Entonces la probabilidad de ambas fichas sean blancas es 30% b)P(B)=(2/5)(1/4)=(2/20)=0.1 -Entonces la probabilidad de ambas fichas sean verdes es 10% 2) Se extrae una bola de una urna que contiene 4 bolas rojas, 5 blancas y 6 negras ¿Cuál es la probabilidad de que la bola sea roja o blanca? ¿Cuál es la probabilidad de que no sea blanca? A=bolas rojas B=bolas blancas C=bolas negras
  • 3. Solución P(A)=4/15=0.26 esta es la probabilidad de que las bolas sean rojas P (B)=5/15=0.33 esta es la probabilidad de que las bolas sean blancas P(C)=6/15=0.4 esta es la probabilidad de que las bolas sean negras P (B) =1-0.33=0.77 entonces la probabilidad de que no sea blanca es 77%