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Project Maths definitions

  • 02-06-2012 11:06am
    #1
    dovahkiin
    Banned (with Prison Access) Posts: 63 ✭✭


    Dies anyone have good definitions for things like 'cluster sampling,stratified sampling and quota' and any other definitions I can't think of or don't know exist


Comments

  • #2
    Chuchoter
    Registered Users, Registered Users 2 Posts: 4,305 ✭✭✭Chuchoter


    The definitions are a mess. There doesn't seem to be a conclusive list anywhere :mad:


  • #3
    reznov
    Registered Users, Registered Users 2 Posts: 921 ✭✭✭reznov


    Use the Internet! Never mind your book.


  • #4
    MathsManiac
    Registered Users, Registered Users 2 Posts: 1,595 ✭✭✭MathsManiac


    You don't need any definitions - you just need to be able to explain what these terms mean.


  • #5
    dovahkiin
    Banned (with Prison Access) Posts: 63 ✭✭dovahkiin


    MathsManiac wrote: »
    You don't need any definitions - you just need to be able to explain what these terms mean.

    So, I don't need a definition but also at the same time I do need a definition, is this some sort of mathematical anomaly? Kinda like Scrodinger's cat, but instead of having to open the box to determine a cat being alive or dead we open our results to see if we got the marks or not?


  • #6
    reznov
    Registered Users, Registered Users 2 Posts: 921 ✭✭✭reznov


    You do need a set of definitions if you are to obtain full marks. I find many of the definitions awkward in the book, and just a quick online search can discover easy to remember ones. There is no single, correct definition. If you explain the concept, I'm sure you'll satisfy the examiners requirement.


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  • #7
    Orange juice
    Registered Users Posts: 46 ✭Orange juice


    Just wondering, do we have to be able to prove the Central Limit Theorm formally or just be able to define it and do questions based on it? :confused: Our teacher only explained it briefly a few weeks ago! :(


  • #8
    deathbythelc
    Registered Users Posts: 338 ✭✭deathbythelc


    Orange juice wrote: »
    Just wondering, do we have to be able to prove the Central Limit Theorem formally or just be able to define it and do questions based on it? :confused: Our teacher only explained it briefly a few weeks ago! :(

    What. Is. That? :eek:


  • #9
    Orange juice
    Registered Users Posts: 46 ✭Orange juice


    deathbythelc wrote: »
    What. Is. That? :eek:
    Sorry didn't mean to alarm you!! I don't think it's very important? It's used in Statistics, I couldn't even explain it properly so I'll let this http://www.youtube.com/watch?v=JNm3M9cqWyc&feature=relmfu

    It says here URL]http://www.projectmaths.com/index.php/2012/05/project-maths-statistics-some-clarifications/[/URL that we don't need to know it as a theorm but then other boardsies were saying it was coming up so if anyone has any clue as to whether it's a proper theorm?


  • #10
    finality
    Registered Users, Registered Users 2 Posts: 1,763 ✭✭✭finality


    Orange juice wrote: »
    Just wondering, do we have to be able to prove the Central Limit Theorm formally or just be able to define it and do questions based on it? :confused: Our teacher only explained it briefly a few weeks ago! :(

    You don't need to be able to prove it, just to use it and know the significance of it. If you know the formula and what the theorem states you'll be fine.


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