subject
Mathematics, 29.07.2020 23:01 melissareid65

An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 lb and 171 lb. The new population of pilots has normally distributed weights with a mean of 138 lb and a standard deviation of 34.9 lb. a. If a pilot is randomly selected, find the probability that his weight is between 150 lb and 201 lb.
b. If 39 different pilots are randomly selected, find the probability that their mean weight is between 150 lb and 201 lb.
c. When redesigning the ejection seat which probability is more relevant?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 19:00
What is x and y intercepts for y=x+7
Answers: 1
question
Mathematics, 21.06.2019 21:00
Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)
Answers: 2
question
Mathematics, 21.06.2019 22:30
Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.
Answers: 1
question
Mathematics, 22.06.2019 00:30
Find the values of the variables and the lengths of the sides of this kite.
Answers: 3
You know the right answer?
An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots...
Questions
question
Mathematics, 27.04.2020 02:21
question
Mathematics, 27.04.2020 02:21
question
Mathematics, 27.04.2020 02:21
question
Mathematics, 27.04.2020 02:22
question
Mathematics, 27.04.2020 02:22