menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
A light bulb manufacturer knows that 0.07% of all bulbs manufactured are defective. A testing machine is 98% effective. If a randomly selected light bulb is tested and found to …
Ask a Question
Questions
Unanswered
Tags
Ask a Question
A light bulb manufacturer knows that 0.07% of all bulbs manufactured are defective. A testing machine is 98% effective. If a randomly selected light bulb is tested and found to …
asked
Feb 2, 2017
78.0k
views
0
votes
A light bulb manufacturer knows that 0.07% of all bulbs manufactured are defective. A testing machine is 98% effective. If a randomly selected light bulb is tested and found to be defective, what is the probability that it actually is defective?
Mathematics
college
Aaru
asked
by
Aaru
7.7k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
3
votes
P[ actually defective & shown as defective] = 98% of 0.08% = 0.0784%
P[ok & shown as defective] = 2% of 99.92% = 1.9984%
P[actually defective | shown as defective] = 0.0784/(0.0784+1.9984) = 3.775% <-------
Earizon
answered
Feb 7, 2017
by
Earizon
9.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Dec 5, 2021
47.4k
views
2. A manufacturer produces light bulbs at a Poisson rate of 300 per hour. The probability that a light bulb is defective is 0.012. During production, the light bulbs are tested, one by one, and the defective
Vyacheslav Enis
asked
Dec 5, 2021
by
Vyacheslav Enis
7.3k
points
Mathematics
college
1
answer
3
votes
47.4k
views
asked
Jul 6, 2018
43.9k
views
1. A factory makes light bulbs. Out of 400 light bulbs, 18 were found to have defective filaments. a. What is the experimental probability that the next light bulb manufactured will have a defective filament?
Dorothy
asked
Jul 6, 2018
by
Dorothy
8.6k
points
Mathematics
middle-school
1
answer
0
votes
43.9k
views
asked
Apr 5, 2019
59.7k
views
A technician is testing light bulbs to determine the number of defective bulbs. The technician records the table below to show the results. Result of Light Bulb Test Number of Bulbs Tested 14 28 84 336
Ildelian
asked
Apr 5, 2019
by
Ildelian
6.7k
points
Mathematics
college
2
answers
1
vote
59.7k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org