Lorinda has 10 books on her bookshelf. 6 of these books have blue covers, and 4 have red covers. 3 of the blue books are mystery novels, and 3 are fantasy novels,
2 of the red books are mystery novels, and 2 are fantasy novels.
Lorinda closes her eyes and randomly selects a book from her bookshelf. Let A be the event that she
selects a blue book and B be the event that the book is a fantasy novel.
Which of the following statements are true?
Choose all answers that apply:

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.