The Boyles are building a large pool in their backyard. They want to make the pool 30 feet by 10 feet. They learn that the city codes
require a fence to be built at a set distance of x feet from each side
of the pool.
Without knowing the value of x, how can they express the total
number of square feet that will be enclosed by the fence?
1
x ft
30 ft
10 ft
x ft.
1
X ft
kxft

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.