dianaguadalupe55 dianaguadalupe55
  • 10-09-2022
  • Mathematics
contestada

Consideremos una urna que contiene 4 bolas rojas y 5 blancas. De las 4 rojas, 2
son lisas y 2 rayadas, y de las 5 blancas, 4 son lisas y una sola es rayada. Supon-
gamos que se extrae una bola y, sin que la hayamos mirado, alguien nos dice
que es roja. ¿Cuál es la probabilidad d e que la bola sea rayada?

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