Question and answer
A company installs 5000 light bulbs, each with an averge life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. find the percentahe of bulbs that can expected to last the period of time. less than 690 hours
The answer is 97.1%
f
Expert answered|jeifunk|Points 6651|
Question|Rated good
Asked 9/19/2012 11:19:40 AM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
the average middle-distance runner at a local high school run the mile in 4.5 minutes, with a standard deviation of 0.3 minute. find the percentage of a runners that will run the mile in less than 4 minutes?
Weegy: 4 is .5 less than the mean of 4.5 To get the z score for this, just do .5 / .3 The z score will be negative, since you're considering something less than the mean. [ [ Look up a z score chart and figure out the percentage of the data that will be less than that z score. ] ] (More)
Question
Expert Answered
Asked 9/19/2012 11:35:12 AM
0 Answers/Comments
find the mean of the set of data. Round your answer to the nearest tenth.
Weegy: What is the given data? (More)
Question
Expert Answered
Asked 9/19/2012 12:01:57 PM
0 Answers/Comments
37,255,371
questions answered
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
What’s the waste product of electrons and pyruvate combining in ...
Weegy: The waste product of electrons and pyruvate combining in fermentation is lactic acid. User: Ella has just ...
1/24/2023 12:51:15 AM| 5 Answers
23. Community Emergency Response Teams are an example of:
Weegy: 23 * 23 = 529 User: 24. The Unified Coordination Group:
1/20/2023 12:21:56 AM| 4 Answers
Good
Weegy: Good definition is a favorable character or tendency. User: Moccasins, , we’re commonly worn by ...
1/23/2023 7:53:19 PM| 4 Answers
What was one of President Lincoln's major frustrations early in the ...
Weegy: Lack of aggressive military leadership was one of President Lincoln's major frustrations early in the Civil ...
1/24/2023 9:08:44 AM| 4 Answers
What book recorded abuses in the meatpacking industry
Weegy: The book "The Jungle" exposed the abuses in the meatpacking industry. User: Concerns over the Spanish ...
1/24/2023 12:44:09 PM| 4 Answers
Sympathy drives disconnection, and empathy drives connection. Which ...
Weegy: Feel sorrow or sadness for the other person- is NOT one of the four qualities of engaging with empathy. User: ...
1/26/2023 4:28:59 AM| 4 Answers
6. Stabilizing community lifelines is the primary effort during?
Weegy: Stabilizing community lifelines is the primary effort during: Incident Response. User: 7. Why is it important ...
1/20/2023 12:08:50 AM| 3 Answers
Vehicles driving in the opposite direction on a multi lane highway ...
Weegy: Vehicles driving in the opposite direction on a multi-lane highway with opposite lanes separated by a raised ...
1/20/2023 1:31:25 AM| 3 Answers
S
L
Points 2709 [Total 3499] Ratings 2 Comments 2679 Invitations 1 Offline
S
L
P
L
Points 1939 [Total 5563] Ratings 0 Comments 1879 Invitations 6 Offline
S
L
P
R
R
Points 1283 [Total 2996] Ratings 6 Comments 1183 Invitations 4 Offline
S
L
Points 685 [Total 2078] Ratings 10 Comments 545 Invitations 4 Offline
S
L
Points 644 [Total 702] Ratings 0 Comments 644 Invitations 0 Offline
S
L
P
R
Points 636 [Total 3926] Ratings 3 Comments 606 Invitations 0 Offline
S
L
Points 502 [Total 2031] Ratings 11 Comments 372 Invitations 2 Offline
S
L
Points 492 [Total 492] Ratings 1 Comments 472 Invitations 1 Offline
S
L
Points 428 [Total 1489] Ratings 2 Comments 378 Invitations 3 Offline
S
L
Points 336 [Total 336] Ratings 3 Comments 306 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.