SOLUTION: The number of weaving errors in a twenty foot by ten foot roll of carpet has a mean of 0.5. What is the probability of observing exactly 2 errors in the carpet?

Question 995828: The number of weaving errors in a twenty foot by ten foot roll of carpet has a mean of 0.5. What is the probability of observing exactly 2 errors in the carpet?

Found 2 solutions by solver91311, MathTherapy:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

No possible way to tell. You provided the mean, but did not provide the standard deviation and did not indicate that the distribution was normal or not. Re-post with all of the pertinent information.

John

My calculator said it, I believe it, that settles it

Answer by MathTherapy(10555) (Show Source): You can put this solution on YOUR website!
The number of weaving errors in a twenty foot by ten foot roll of carpet has a mean of 0.5. What is the probability of observing exactly 2 errors in the carpet?

This is a POISSON Distribution. With number of observed errors being 2, we get:
RELATED QUESTIONS
A 15 foot by 12 foot room is to be carpeted. There is a 3 foot by 5 foot area in front... (answered by cathieb1225)
find the smallest angle of a 4 foot by 5 foot by 7 foot triangular table (answered by Alan3354)
Textbook authors and publishers work very hard to minimize the number of errors in a... (answered by stanbon)
Textbook authors and publishers work very hard to minimize the number of errors in a... (answered by ikleyn)
Textbook authors and publishers work very hard to minimize the number of errors in a... (answered by ikleyn)
Textbook authors and publishers work very hard to minimize the number of errors in a... (answered by ikleyn)
Textbook authors and publishers work very hard to minimize the number of errors in a... (answered by MathLover1)
The weaving department of a factory occupies 3.5 times as much floor space as the... (answered by ikleyn)
A roll of Glad Wrap sells for $2.99 a roll. A roll of Press'N'Seal sells for $3.79 or 5... (answered by ankor@dixie-net.com)