The box plots below show student grades on the most recent exam compared to overall grades in the class: Two box plots are shown. The top one is labeled Class. Minimum at 74, Q1 at 78, median at 85, Q3 at 93, maximum at 98. The bottom box plot is labeled Exam. Minimum at 81, Q1 at 85, median at 93, Q3 at 96, maximum at 99. Which of the following best describes the information about the medians? The exam median is only 1–2 points higher than the class median. The exam median is much higher than the class median. The additional scores in the second quartile for the exam data make the median higher. The narrower range for the exam data causes the median to be higher.

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.