North NOT TO
SCALE
180km
115km
90km
30
H н
70
The diagram shows some straight line distances between Auckland (0), Hamilton (H), Tauranga (1)
and Rotorua (R)
AT - 180 km, AH - 115 km and HT-90 km
1
Calculate angle HAT
Show that this rounds to 25.0%, correct to 3 significant figures.
[4)
(b) The bearing of H from A is 150
Find the bearing of
W T from
[1]
[1]
w from T

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.