FlyHigh Airlines determined that the distance travelled per aircraft per year is normally distributed, with a mean of 60 thousand miles and a variance of 100 thousand miles. a) What proportion of aircrafts can be expected to travel between 44 and 54 thousand miles in a year? b) What percentage of aircrafts can be expected to travel either less than 25 or more than 70 thousand miles in a year? c) How many miles will be travelled by at least 70 percent of the aircrafts? d) What is the proportion of aircraft that travelled at least 50 thousand miles?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
Assignment 4
FlyHigh Airlines determined that the distance travelled per aircraft per year is normally
distributed, with a mean of 60 thousand miles and a variance of 100 thousand miles.
a) What proportion of aircrafts can be expected to travel between 44 and 54 thousand
miles in a year?
b) What percentage of aircrafts can be expected to travel either less than 25 or more than
70 thousand miles in a year?
c) How many miles will be travelled by at least 70 percent of the aircrafts?
d) What is the proportion of aircraft that travelled at least 50 thousand miles?
Transcribed Image Text:Assignment 4 FlyHigh Airlines determined that the distance travelled per aircraft per year is normally distributed, with a mean of 60 thousand miles and a variance of 100 thousand miles. a) What proportion of aircrafts can be expected to travel between 44 and 54 thousand miles in a year? b) What percentage of aircrafts can be expected to travel either less than 25 or more than 70 thousand miles in a year? c) How many miles will be travelled by at least 70 percent of the aircrafts? d) What is the proportion of aircraft that travelled at least 50 thousand miles?
Expert Solution
steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman