OCR (not MEI) S3 - 31/05/2012

Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.

Announcements Posted on
TSR launches Learn Together! - Our new subscription to help improve your learning 16-05-2013
IMPORTANT: You must wait until midnight (morning exams)/4.30AM (afternoon exams) to discuss Edexcel exams and until 1pm/6pm the following day for STEP and IB exams. Please read before posting, including for rules for practical and oral exams. 28-04-2013
Sign in to Reply
  1. jamib0y's Avatar
    • Full Member
    • Location: London
    • Posts: 130
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by CJAW)
    Can you put the confidence intervals in if you have done those questions? I couldn't remember my answers to them at all.
    sure

    1) i) [0.072,0.208]

    4)i) [13.42,15.58]

    5) iii) 0.9512 (what paddyfields said up there)

    7) ii) 6.7389
  2. CJAW's Avatar
    • Adored and Respected Member
    • Location: Coventry
    • Posts: 453
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by jamib0y)
    sure

    1) i) [0.072,0.208]

    4)i) [13.42,15.58]

    5) iii) 0.9512 (what paddyfields said up there)

    7) ii) 6.7389
    Glad to see I recognise those, thanks man!
  3. jamib0y's Avatar
    • Full Member
    • Location: London
    • Posts: 130
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by CJAW)
    Glad to see I recognise those, thanks man!
    always good to hear!
  4. Ree69's Avatar
    • Exalted and Worshipped Member
    • Location: London
    • Posts: 1,109
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by jamib0y)
    always good to hear!
    question 4 looks a bit different to mine...did you use t-distribution?
  5. NightBear's Avatar
    • Adored and Respected Member
    • Posts: 568
    Re: OCR (not MEI) S3 - 31/05/2012
    Did everyone think this was a fairly easy paper?

    I thought it was a nice paper, but I don't want to remain super hopeful, only to get mediocre grades
  6. CJAW's Avatar
    • Adored and Respected Member
    • Location: Coventry
    • Posts: 453
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by NightBear)
    Did everyone think this was a fairly easy paper?

    I thought it was a nice paper, but I don't want to remain super hopeful, only to get mediocre grades
    I thought it was a middleish paper. Harder than than the 2007/2008 variety but ultimately, if you knew what you were doing, it was quite approachable. In terms of grade boundaries, I would guess similar to jan 2012, particuarly since the paper was of a comparable standard. That's just my opinion , can't really be too sure...
    Last edited by CJAW; 01-06-2012 at 21:04.
  7. jamib0y's Avatar
    • Full Member
    • Location: London
    • Posts: 130
    Re: OCR (not MEI) S3 - 31/05/2012
    (Original post by Ree69)
    question 4 looks a bit different to mine...did you use t-distribution?
    most probably, what was the question again?

    It was an OK paper, but some guy at my school did derp and thought 13/4 was 4.25, and being too cocky to try it out on a calculator got the entire 9 marker wrong, oh well, look on the bright side patty
Sign in to Reply
Share this discussion:  
Article updates
Moderators

We have a brilliant team of more than 60 volunteers looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Reputation gems:
The Reputation gems seen here indicate how well reputed the user is, red gem indicate negative reputation and green indicates a good rep.
Post rating score:
These scores show if a post has been positively or negatively rated by our members.