Un camión cisterna transporta agua a zonas de Africa con sequía. En la última carga no observaron que había un agujero por la que se perdió una doceava parte de la capacidad de lo que quedó, dejaron 2/5 en la primera aldea, y en la segunda 3/4 de lo que quedaba. En las dos últimas se repartió lo que quedaba en partes iguales. ¿Qué fracción de la capacidad total dejaron en las dos últimas aldeas?

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb. the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.