OCR (not MEI) D2 - 18/05/2012

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  1. ElMoro's Avatar
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    OCR (not MEI) D2 - 18/05/2012
    Anyone else taking the exam tomorrow?
  2. khaaan's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    Yup
  3. Femto's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    Yes. D2 is the worst module ever, but yes.
  4. ElMoro's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    I actually really like D2. Probably my favourite module, with M3 and FP3 close seconds

    Anyway not feeling as confident as I would like for this module but best of luck guys. May God help us all
  5. lilipop's Avatar
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    OCR D2 May 2012
    I've just done it, didn't finish the last two bit
    Anyone wants to check answers?

    I could only remember a few answers…
    Game Theory: p=0.6 and q=0.5
    Critical activities: minimum completion time: 12 hours. critical activities BCDand something like I or J?
  6. TRLMaths's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    Thoughts?
  7. lilipop's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    fine, long paper as usual
  8. SBarns's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    (Original post by TRLMaths)
    Thoughts?
    I thought it was a nice paper, timing was much better than last years papers IMHO. The last part of the CPA question was a bit strange though...
  9. SBarns's Avatar
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    Re: OCR D2 May 2012
    (Original post by lilipop)
    I've just done it, didn't finish the last two bit
    Anyone wants to check answers?

    I could only remember a few answers…
    Game Theory: p=0.6 and q=0.5
    Critical activities: minimum completion time: 12 hours. critical activities BCDand something like I or J?
    That's the same as what I got for all of those, I got the critical activities as something like BCD and I (if I remember correctly) - did you get 2am for the D.P plane question?
  10. fallen_child's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    nicer paper than jan 2012 but still find it difficult manage to finish
    Last edited by fallen_child; 18-05-2012 at 12:09.
  11. lilipop's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    (Original post by fallen_child)
    nicer paper than jan 2012 but still find it difficult manage to finish
    Same here. I don't understand why they couldn't just give 5 questions and everyone would be happy.
  12. lilipop's Avatar
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    Re: OCR D2 May 2012
    (Original post by SBarns)
    That's the same as what I got for all of those, I got the critical activities as something like BCD and I (if I remember correctly) - did you get 2am for the D.P plane question?
    yes~~~2 am, and then 7 am, 10 am and 1 pm for passing through? I crossed out the start and the end cause I didn't think that's part of 'passes through'… Hope I'm right.

    and it was I, J is after E.(suddenly remember it now)
  13. fallen_child's Avatar
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    Re: OCR (not MEI) D2 - 18/05/2012
    (Original post by lilipop)
    Same here. I don't understand why they couldn't just give 5 questions and everyone would be happy.
    totally agree !!!! they should put the grade boundary lower as well !!!
  14. SBarns's Avatar
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    Re: OCR D2 May 2012
    (Original post by lilipop)
    yes~~~2 am, and then 7 am, 10 am and 1 pm for passing through? I crossed out the start and the end cause I didn't think that's part of 'passes through'… Hope I'm right.

    and it was I, J is after E.(suddenly remember it now)
    Yes those are the time I got, I thought that too so I put (0;0) departs at blah, (1;0) passes through at blah etc etc then (4;0) arrives at 3pm - but you won't lose marks because they only asked for the times in the middle of the route (ie - not the start or end).

    Sounds right.

    The only real challenge on the paper was the last two parts of the last question, and it was only worth 5 marks...but I was starting to run out of time by then anyway.
  15. SecondHand's Avatar
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    Re: OCR D2 May 2012
    Quite a standard exam I thought, I just ran out of room on a few of the questions. The last few questions are going to be the hardest and they involve understanding rather than knowledge.
  16. SBarns's Avatar
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    Re: OCR D2 May 2012
    (Original post by SecondHand)
    Quite a standard exam I thought, I just ran out of room on a few of the questions. The last few questions are going to be the hardest and they involve understanding rather than knowledge.
    The one where they asked you to reduce the array for the hungarian algorithm was difficult to squash in. To be honest the understanding type questions were only worth (IMO) 5 marks, so overall a fair paper. What did you think of the timing?
  17. lilipop's Avatar
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    Re: OCR D2 May 2012
    (Original post by SBarns)
    Yes those are the time I got, I thought that too so I put (0;0) departs at blah, (1;0) passes through at blah etc etc then (4;0) arrives at 3pm - but you won't lose marks because they only asked for the times in the middle of the route (ie - not the start or end).

    Sounds right.

    The only real challenge on the paper was the last two parts of the last question, and it was only worth 5 marks...but I was starting to run out of time by then anyway.
    6 vi and vii?
    I think vi was fine although I didn't finish it…
    D2 questions take longer than they look like…
    I had extra time but still didn't finish the whole paper…
    for Q1~Q4, I spent 15min on average for each(include the time I spent on checking my answers), Q5 and Q6 needed explanations so…took longer.
  18. SBarns's Avatar
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    Re: OCR D2 May 2012
    (Original post by lilipop)
    6 vi and vii?
    I think vi was fine although I didn't finish it…
    D2 questions take longer than they look like…
    I had extra time but still didn't finish the whole paper…
    for Q1~Q4, I spent 15min on average for each(include the time I spent on checking my answers), Q5 and Q6 needed explanations so…took longer.
    There were 4 parts to the last question about Tariq and Sally, I got the first two but then had to guess the last two parts - I'm not too bothered really as (hopefully) everything else is more or less correct.
    I did the first 4 questions and had about half an hour to spare, network flows needed a bit of thought but was alright. Do you do further then?
  19. FK_'s Avatar
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    Re: OCR D2 May 2012
    What did people get for the Hungarian Algorithm question ?
  20. SBarns's Avatar
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    Re: OCR D2 May 2012
    (Original post by FK_)
    What did people get for the Hungarian Algorithm question ?
    I can't remember what answer I got, but I know I had to augment by 2 (I think) - then pick out the order. Definitely only one augmentation though.
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