The life of light bulbs is distributed normally. The variance of the lifetime is 225 and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at most 547 hours. Round your answer to four decimal places.

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
100%
The life of light bulbs is distributed normally. The variance of the lifetime is 225 and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at
most 547 hours. Round your answer to four decimal places.
Answer
Statistical Tables
Tables
If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of the row and column or use the arrow keys to
find the appropriate cell in the table and select it using the Space key.
Binomial Probabilities
Binomial Cumulative
Poisson Probabilities
Poisson Cumulative
Keypad
Keyboard Shortcuts
↓
Binomial Probabilities (n = 1)
Probability of Success or p
0.4
0.5 0.6
X
0.2
0.3
0.7
0.8
0.9
0.1
0 0.9000 0.8000 0.7000 0.6000 0.5000 0.4000 0.3000 0.2000 0.1000
1 0.1000 0.2000 0.3000 0.4000 0.5000 0.6000 0.7000 0.8000 0.9000
X
Transcribed Image Text:The life of light bulbs is distributed normally. The variance of the lifetime is 225 and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at most 547 hours. Round your answer to four decimal places. Answer Statistical Tables Tables If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of the row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key. Binomial Probabilities Binomial Cumulative Poisson Probabilities Poisson Cumulative Keypad Keyboard Shortcuts ↓ Binomial Probabilities (n = 1) Probability of Success or p 0.4 0.5 0.6 X 0.2 0.3 0.7 0.8 0.9 0.1 0 0.9000 0.8000 0.7000 0.6000 0.5000 0.4000 0.3000 0.2000 0.1000 1 0.1000 0.2000 0.3000 0.4000 0.5000 0.6000 0.7000 0.8000 0.9000 X
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 4 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