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X - CBTa 233

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¿Cuál es la probabilidad de obtener un número impar al lanzar un dado?.<br />

S = ( 1, 2, 3, 4, 5, 6 ) E = ( 1, 3, 5, ) p ( E ) = 3 = 1<br />

6 2<br />

La probabilidad es de ½ o 0.5 en porcentaje será el 50%<br />

¿Cuál es la probabilidad de extraer una ficha de dominó con 7 puntos de una caja, sin ver?.<br />

S = (6,6), (6,5), (6,4), (6,3), (6,2), (6,1), (6,0), (5,5), (5,4), (5,3), (5,2), (5,1), (5,0), (4,4),<br />

(4,3), (4,2), (4,1), (4,0), (3,3), (3,2), (3,1), (3,0), (2,2), (2,1), (2,0), (1,1), (1,0), (0,0)<br />

E = { (6,1), (5,2), (4,3) }<br />

p ( E ) = 3 = 0.1071 en porcentaje será el 10.71%<br />

28<br />

71

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