Results 1 to 2 of 2

Math Help - using normal distributions

  1. #1
    Newbie
    Joined
    Jul 2007
    Posts
    23

    using normal distributions

    I don't know if it is because this is in a word problem or what. It's got me all confused. the problem is writen as this.

    The annual per capita consumption of ice cream ( in pounds) in the U.S can be approximated by a normal distribution, as shown in the graph.
    The mean is 16.5 LBs, and the Distribuion is 2.5 lb.


    I can't draw the graph all the way but the consumption in pounds is like this

    8 10 12 14 16 18 20 22 24 26 on the graph. I need to find the smallest annual per capita consumption of ice cream that can be in the top 25% of consuptions?
    and the largest annual per capita consumption of ice cream that can be in the bottom 15% of consumptions?
    So would this be written like this? for A. Consumption = 25 =Area= 0.75 ->z = ? Please help with the rest...pleeze.
    Could someone help me put this into a problem? Thank you in advance.
    Last edited by mkcar; July 29th 2007 at 05:30 PM. Reason: I did not write the problem right and added some of the answer I thought was right
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    Jul 2007
    Posts
    23

    Have I wore out my welcome

    Have I wore out my welcome?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. normal distributions
    Posted in the Statistics Forum
    Replies: 6
    Last Post: July 19th 2011, 05:50 AM
  2. normal distributions
    Posted in the Statistics Forum
    Replies: 1
    Last Post: October 18th 2010, 07:54 AM
  3. Normal Distributions
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: May 5th 2010, 06:09 PM
  4. How to put two normal distributions together
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: January 17th 2009, 03:33 PM
  5. Sum of normal distributions
    Posted in the Advanced Statistics Forum
    Replies: 7
    Last Post: April 10th 2008, 11:54 AM

Search Tags


/mathhelpforum @mathhelpforum