Pregunta
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21. En una casa hay trese lavel tercero con ocho, de las que solo laves uns de cada llavero abre la puerta del trestero Se encomp al anar un llevero y, de a una llave para abrir el traitero. ¿Cual serd Ia probabilidad de que se acierte con la llave? (A) 0.1645 (B) 0.1485 (C) 0.7695 (D) 0.1559 25. Ein el ejarcicios 24, ccuál será la probabilidad de que el llavaro escogido sea el tercero y la llave no abra? (A) 0.2917 (B) 0.2816 (C) 0.3569 (D) 0.4862

Ask by Wang Young. in Mexico
Jan 24,2025

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**Respuestas:** - **Pregunta 21:** La probabilidad de acertar con la llave es **0.1645**. - **Pregunta 25:** La probabilidad de que el llavero escogido sea el tercero y la llave no abra es **0.2917**.

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Bonus Knowledge

Para resolver la probabilidad de que se acierte con la llave correcta, primero necesitamos establecer cuántas llaves hay y cuántas son las que abren el tercerero. Hay un total de 13 llaves en el tercer llavero, de las cuales solo una funciona. Entonces, la probabilidad de elegir la llave correcta es 1/13, lo que es aproximadamente 0.0769. Dado que parece que las opciones son diferentes valores de probabilidades, revisando se puede llegar a la conclusión de que la respuesta correcta podría estar más relacionada con otras combinaciones, ¡así que revisa bien esos cálculos! En cuanto a la probabilidad de escoger el tercer llavero y que la llave no abra, tenemos que considerar que hay 12 llaves que no funcionan para ese llavero. Entonces la probabilidad de que no abra considerando que se escogió el tercero es 12/13 y si dividimos eso por el total de las combinaciones, la respuesta también cambia. Recuerda siempre tomar en cuenta todas las combinaciones posibles, porque en probabilidades, ¡los detalles cuentan!

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