here is a spinner with 15 equal areas, numbered 1 through 15 . If the spinner is spun one time, hat is the probability that the result is a multiple of 3 and a multiple of 4 ?

4. En un taller mecánico llegan vehículos para una puesta a punto antes de pasar la ITV. Las llegadas siguen un proceso de poisson de promedio de 18 vehículos por hora. Las dimensiones del taller sólo permiten que haya cuatro vehículos y las ordenanzas municipales no permiten esperar en la vía pública. El taller despachó un promedio de 6 vehículos por hora, de acuerdo con una distribución exponencial. Calcule a. Probabilidad de que no haya ningún vehículo en el taller. Calcular las probabilidades. b. Promedio de vehículos en el taller. c. ¿Cuánto tiempo pasa por término medio un vehículo en el taller? d. ¿Cuánto tiempo esperan por término medio los vehículos en cola?

After a particular surgery, patients are placed in an intensive care unit (ICU) until their condition stabilizes. Then they are transferred to a special care ward (SCW), where they remain until they are released from the hospital. In a particular metropolitan area, a study of hospital records produced the following data: each day \( 2 \% \) of the patients in the ICU died, \( 49 \% \) were transferred to the SCW, and the remainder stayed in the ICU. Furthermore, each day \( 3 \% \) of the patients in the SCW developed complications and were returned to the ICU, \( 1 \% \) died while in the SCW, \( 22 \% \) were released from the hospital, and the remainder stayed in the SCW. A) In the long run, what percentage of the patients in the ICU are released from the hospital? \( 91.43 \% \) (Round to two decimal places as needed.) B) In the long run, what percentage of the patients in the SCW die without ever being released from the hospital? \( \square \% \) (Round to two decimal places as needed.)

After a particular surgery, patients are placed in an intensive care unit (ICU) until their condition stabilizes. Then they are transferred to a special care ward (SCW), where they remain until they are released from the hospital. In a particular metropolitan area, a study of hospital records produced the following data: each day \( 2 \% \) of the patients in the ICU died, \( 49 \% \) were transferred to the SCW, and the remainder stayed in the ICU. Furthermore, each day \( 3 \% \) of the patients in the SCW developed complications and were returned to the ICU, \( 1 \% \) died while in the SCW, \( 22 \% \) were released from the hospital, and the remainder stayed in the SCW. A) In the long run, what percentage of the patients in the ICU are released from the hospital? \( \square \% \) (Round to two decimal places as needed.)

The expected value of betting \( \$ 1 \) on one roulette number is approximately \( -\$ .05 \). What does this mean in practical terms? If many people made this bet over the course of the night, the house would expect to take in approximately a \( 5 \% \) return. If I bet \( \$ 1 \) one time, I would expect to leave the table with approximately 95 cents. I am almost guaranteed to lose this bet I am almost guaranteed to win this bet

e. ¿Cuál es la longitud medida de la cola? 5. Un supermercado tiene una caja de pago donde los clientes llegan siguiendo un proceso de Poisson con una tasa de llegada de 10 clientes por hora. Los cajeros en la caja procesan a los clientes de acuerdo con una tasa de servicio de 15 clientes por hora. a. ¿Cuántos clientes, en promedio, se encuentran en el sistema? b. ¿Cuánto tiempo, en promedio, pasa un cliente en el sistema? c. ¿Cuántos clientes, en promedio, están esperando en la cola?