Martin Island is 240 miles away from Phillips Island. A Martin Speedboat departs Martin Island and travels at x mph toward Phillips Island. One hour
later, a Phillips Speedboat departs Phillips Island and travels towards Martin
Island at twice the speed of the Martin Speedboat. Two hours after the
Martin Speedboat has departed from Martin Island, the boats meet. How
fast, in miles per hour, is the Phillips Speedboats traveling?
А
60
B
80
С
100
D
120
160
m

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.