Results 1 to 1 of 1

Math Help - Standard Deviation

  1. #1
    Junior Member
    Joined
    Feb 2008
    Posts
    61

    Standard Deviation

    Hi, I am having trouble determining how Standard Deviation was calculated in a covariance problem between stocks and bonds. The standard deviation of the stock is supposed to be 14.92 and the standard deviation of the bond is supposed to be 7.75 and I just don't understand how these numbers were arrived at. I have the following data, I also have it in Excel if you would like.

    Probability: Stock Fund Bond Fund Product of deviation
    0.3 -21 10 -210
    0.4 3 0 0
    0.3 17 -10 -170

    Please help, thanks
    Attached Files Attached Files
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Standard Deviation
    Posted in the Statistics Forum
    Replies: 4
    Last Post: September 8th 2010, 03:05 AM
  2. Replies: 5
    Last Post: May 18th 2009, 04:14 AM
  3. standard deviation and mean deviation
    Posted in the Statistics Forum
    Replies: 1
    Last Post: March 16th 2008, 05:09 AM
  4. i need standard deviation help
    Posted in the Statistics Forum
    Replies: 2
    Last Post: February 22nd 2008, 05:03 PM
  5. The mean and standard deviation
    Posted in the Advanced Statistics Forum
    Replies: 3
    Last Post: February 17th 2008, 08:15 PM

Search Tags


/mathhelpforum @mathhelpforum