5.4.8* In Problem 5.22, we solved this problem:
I bought a new comic book at the Comic Book Shoppe and paid entirely using
quarters. If I had instead paid using only dimes, I would have needed 9 more coins.
How much did the comic book cost?
A solution by assigning a variable to the number of quarters I used to buy the comic book
However, it is possible to find the solution by assigning a variable to the cost of the comic book
How? Hints: 113

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.