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S2 Yates' Correction watch

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    In a text book i have, it says that you can use this formula for a 2x2 table

    http://upload.wikimedia.org/math/a/c...358130ae1c.png

    But it doesn't appear in the mark scheme, however because it gives you an exact same answer, would it be sufficient to gain the marks for working?
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    I would guess it would.

    With the above method, would it be necessary to draw a table? Because, according to an AQA mark scheme at least, marks are awarded for drawing the table/calculating totals etc.
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    Yeah that was my main worry, i guess i'll see how much time i have

    Thanks anyway
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    From what i recall.. if its 2 x 2 table, you have to use the Yates' Correction, |O-E| - 0.5.
    From the past paper i've done (AQA), using the correction actually gains you a method mark...

    (S2 exam on Thu :s)
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    (Original post by GunmanZ02)
    From what i recall.. if its 2 x 2 table, you have to use the Yates' Correction, |O-E| - 0.5.
    From the past paper i've done (AQA), using the correction actually gains you a method mark...

    (S2 exam on Thu :s)
    Same

    You ready for it?
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    (Original post by Topmanfaz)
    Same

    You ready for it?
    I want to say yes but i can't lie to myself :p:
    but i'll be ready before the exam.. D2 resit aswell straight after S2 :o:
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    (Original post by GunmanZ02)
    I want to say yes but i can't lie to myself :p:
    but i'll be ready before the exam.. D2 resit aswell straight after S2 :o:
    Ahh, I got M2 before it :rofl:

    Good thing I've covered up M2 last week :jive:
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    (Original post by Topmanfaz)
    Ahh, I got M2 before it :rofl:

    Good thing I've covered up M2 last week :jive:
    good for you
    i got 4 exams in the next 3 days :rolleyes:
    sugar.. i should be revising now , ttyl!
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    WOOO S2 I been revising that!!!
    Yate's correction is fairly easy... just for a 2x2 table... only problem is that the graphical calculator doesn't do it for you (using matrices). However its only 4 things you need to calculate, so not toooo bad.
 
 
 
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Updated: January 27, 2009

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