Aiden calculated the area of triangle QRS below by finding half the product of 1.5 and 1.1.

Triangle Q R S has a base of 5.4 and a height of 1.1. Another side has a length of 1.5.

What error did Aiden make?
Aiden should have found half the product of 1.1 and 1.2 because the 1.5 line is not a dotted line in the figure.
Aiden should have found half the product of 1.1 and 5.4 because the 1.5 line is not perpendicular to the 1.1 line.
Aiden should have found half the product of 1.5 and 1.2 because the 1.1 line is not perpendicular to the 1.5 line.
Aiden should have found half the product of 1.5 and 5.4 because the 1.1 line is a dotted line and not part of the figure.

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.