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Thread: Statistics...

  1. #1
    anyone want to help me with some stats work...?

    "Find the 1 percentile of the standard Normal distribution to (at least) 2 decimal places. "

    wtf??

    "X stands for the Normal random variable with mean 5 and standard deviation 3.

    Find:
    P( X < 12.17 )
    P( X > 12.68 )
    P( -2.59 < X < 6.44 )
    P( X < 1.88 or X > 8.12 )"

    the first one to give the correct answers and sit the test for me gets a lollipop...
    <span style='font-size:14pt;line-height:100%'>BLAH</span>

    <span style='font-size:14pt;line-height:100%'>Wayne Rooney - A thug and a thief</span>

  2. Lounge   -   #2
    bigboab's Avatar Poster BT Rep: +1
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    Originally posted by 3rd gen noob@12 November 2003 - 10:41
    anyone want to help me with some stats work...?

    "Find the 1 percentile of the standard Normal distribution to (at least) 2 decimal places. "

    wtf??

    "X stands for the Normal random variable with mean 5 and standard deviation 3.

    Find:
    P( X < 12.17 )
    P( X > 12.68 )
    P( -2.59 < X < 6.44 )
    P( X < 1.88 or X > 8.12 )"

    the first one to give the correct answers and sit the test for me gets a lollipop...
    Just shove it into Excel and it will do it for you.
    The best way to keep a secret:- Tell everyone not to tell anyone.

  3. Lounge   -   #3
    Im not good with stuff like that. B)
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  4. Lounge   -   #4
    DarthInsinuate's Avatar Died in battle
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    i&#39;ve done this in college recently - here&#39;s a (bad) scan of my notes



    hopefully you can work out what it means and explain it to me
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  5. Lounge   -   #5
    UKMan's Avatar Poster
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    Originally posted by DarthInsinuate@12 November 2003 - 13:17
    i&#39;ve done this in college recently - here&#39;s a (bad) scan of my notes



    hopefully you can work out what it means and explain it to me
    My excel looks a tad better than that - time to upgrade me thinks

    Peace
    UKMan

  6. Lounge   -   #6
    Skweeky's Avatar Manker's web totty
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    download SPSS for windows and just give in the info, one click on a button and you have a nice diagram, and even a boxplot if you like

    I don&#39;t think you should use a Gauss-curve here by the way, but you better ask someone else, because I&#39;m not too good at math (maybe if you ask Lamsey nicely he&#39;ll help you out a bit )

  7. Lounge   -   #7
    Originally posted by Skweeky@12 November 2003 - 15:22
    download SPSS for windows and just give in the info, one click on a button and you have a nice diagram, and even a boxplot if you like

    I don&#39;t think you should use a Gauss-curve here by the way, but you better ask someone else, because I&#39;m not too good at math &nbsp; (maybe if you ask Lamsey nicely he&#39;ll help you out a bit )
    myself and tc were trying today, but i think we asked him a little too much and annoyed him...

    it might be cos i stole his hat, or beat him at pool or something, i&#39;m not sure

    anyway, thanks for the help guys, i still failed the test though

    edit: lmfao...i just checked there and i actually passed

    i just assumed i was gonna fail
    <span style='font-size:14pt;line-height:100%'>BLAH</span>

    <span style='font-size:14pt;line-height:100%'>Wayne Rooney - A thug and a thief</span>

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