5) De una urna hay 5 fichas numeradas del 1 al 5 y en otra urna 4 fichas numeradas del 6 al 9 , se saca una ficha de la primera y otra de la segunda urna con estos se forma un numeral. ¿Cuántos son los valores posibles de este numeral? \( \begin{array}{llll}\text { A) } 15 & \text { B) } 20 & \text { C) } 22 & \text { D) } 25\end{array} \)

The number of births in a hospital follows a Poisson distribution with an average number of 1 birth per hour. What is the 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. Calculate the probability that there will be no failure over the whole year. 0.000 0.05 0.735

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 next six months. 0.2231 0.6653 0.1353 0.3679

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

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?