4) Se lanza un dado cúbico con sus caras numeradas del 1 al 6 . Sean los sucesos A: "obtener un número par" y B: "obtener un múltiplo de 3 ". Calcular la diferencia entre el número de elementos del suceso A y el número de elementos del suceso B. \( \begin{array}{llll}\text { A) } 0 & \text { B) } 1 & \text { C) } 2 & \text { D) } 3\end{array} \)

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

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? 0.8647 0.6321 0.1353 0.2707

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the standard deviation associated with the number of births within a whole day (i.e. over 24 hours)?

In a town, the number of electric power failures occurs randomly with an average of one failure every 4 months. What is the variance associated with the number of failures over six consecutive months?