Results 1 to 3 of 3

Math Help - Probability (Poisson)

  1. #1
    Member
    Joined
    Nov 2009
    Posts
    151

    Probability (Poisson)

    A machine on average produces 4 defective items out of a batch of 100 items.
    Find the probability that a batch of 50 items has 3 defective items in it using the Poisson probability distribution.

    the problem is..
    i just want to know the mean or average value for batch of 50 items..
    i got mean = 2
    because for 100 items, the mean is 4..
    ............for 50 items, the mean would be 2..
    correct?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by nameck View Post
    A machine on average produces 4 defective items out of a batch of 100 items.
    Find the probability that a batch of 50 items has 3 defective items in it using the Poisson probability distribution.

    the problem is..
    i just want to know the mean or average value for batch of 50 items..
    i got mean = 2
    because for 100 items, the mean is 4..
    ............for 50 items, the mean would be 2..
    correct?
    Yes.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Nov 2009
    Posts
    151
    Thanks for the confirmation mr fantastic!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Probability - Poisson
    Posted in the Statistics Forum
    Replies: 3
    Last Post: November 8th 2010, 01:19 PM
  2. Poisson Probability
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: June 21st 2010, 07:37 AM
  3. Poisson Probability
    Posted in the Statistics Forum
    Replies: 2
    Last Post: February 20th 2010, 08:14 AM
  4. poisson probability
    Posted in the Advanced Statistics Forum
    Replies: 11
    Last Post: October 10th 2008, 02:53 PM
  5. Poisson Probability
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: August 2nd 2008, 08:34 AM

Search Tags


/mathhelpforum @mathhelpforum