a) Una planta de tratamiento de agua tiene tres tipos de filtros \( (\mathrm{A}, \mathrm{B}, \mathrm{C}) \) y dos métodos de desinfección (cloro y ozono). ¿De cuántas formas distintas se puede diseñar un proceso de purificación eligiendo un filtro y un método de desinfección?

In a town, the number of electric power failures occurs randomly with an average of one failure every 4 months. Calculate the probability that there will be no failure over the whole year. 0.000 0.05 0.735

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the probability that there will be at least one birth within the next 2 hours? \( \frac{0.8647}{0.6321} \) 0.1353

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the probability that there will be no birth within the next 2 hours? 1.00 0.135 0.368 0.250

A photographer was told that the average number of lion sightings on a 3-day safari is 1. What is the probability of not seeing any lion over the course of the 3-day safari? 0.368 0.000 0.500 0.333

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the probability that there will be no birth within the next 2 hours? 0.250 0.135 0.368 1.00