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    I nearly wrote fat joe instead of Paul
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    (Original post by physicsmaths)
    Easy or hard paper?
    I think it was easier then last year, but it wasnt easy. Medium id say, around 69 for A* and 55 for a B?


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    medium, just time pressure really, didn't get to check my answers:\
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    (Original post by Mav1)
    I estimate 64/75 for an A
    Daym. Lol i dnt care anyway 😂. Time to rape M4-5.


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    (Original post by economicss)
    Does anyone know if Arsey will be doing an unofficial mark scheme?
    I saw someone in another thread claiming he wouldn't be. Cannot confirm this though
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    (Original post by economicss)
    Does anyone know if Arsey will be doing an unofficial mark scheme?
    Hopefully! I don't think he sits the S3,m3?
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    (Original post by economicss)
    Does anyone know if Arsey will be doing an unofficial mark scheme?
    http://www.thestudentroom.co.uk/show....php?t=4117437
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    (Original post by physicsmaths)
    Daym. Lol i dnt care anyway 😂. Time to rape M4-5.


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    Just printed off loads of papers, you doing all textbook questions and then papers or just smashing through papers?
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    (Original post by ninjass)
    My answers - I thought t was fairly standard

    1a) More representative, individual strata estimates availiable
    1b) random process, no interviewer bias

    2) 5.61 and I think you rejected

    3a) When the data isn't bivariate noral
    b) 0.75 and I think you rejected
    You accepted the pmcc question
    e) You HAD TO say about ranks - days where sales of ice cream ranked highly, ranked highly for sunglasses

    4a) 0.7794
    b) 760,302.25
    c) 0.0107

    5a) 1.95 and you rejected
    b) Var of sample = var of population. Samples are independent of each other. CANT MENTION CLT - as its not an assumption, it's a thorem
    c) tricky - 12.7

    6a) Test statistic was 4.1 and you accepted
    b) r= 26.78 s= 16.07
    c) Test statistic was 14.65 you reject

    7a) 19.15%,19.85%
    b) Paul shoud tell them to lover stated weight
    c) n=44

    Who agrees?
    I agree I think, I can't remember perfectly

    (Original post by NewMedic)
    Yeah, 'above', that's what I'd seen before too
    (Original post by Mav1)
    Lose one mark probably if you stated it was outside confidence interval
    That is the biggest load of rubbish ever, proper annoying

    Why can't edexcel give marks for mathematical ability rather than distinguishing candidates based on whether they say something is above or outside? :confused:

    Then again surely because it was 1 mark, you'd be awarded the mark for saying 'Recommend they reduce the stated weight'?
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    (Original post by Euclidean)
    Just printed off loads of papers, you doing all textbook questions and then papers or just smashing through papers?
    Tesxt book reviews for M4-5 n for S4 im gna leanr it all in next few days then just do all the papers.


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    (Original post by Euclidean)
    I agree I think, I can't remember perfectly





    That is the biggest load of rubbish ever, proper annoying

    Why can't edexcel give marks for mathematical ability rather than distinguishing candidates based on whether they say something is above or outside? :confused:

    Then again surely because it was 1 mark, you'd be awarded the mark for saying 'Recommend they reduce the stated weight'?
    cuz its statistics not maths my teacher always tell us to think as a statistician not a mathematician lol. to be fair this year's comment question are easier then last year (difference in means and relations between U1 and sample mean of U ouch)
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    (Original post by lai812matthew)
    cuz its statistics not maths my teacher always tell us to think as a statistician not a mathematician lol. to be fair this year's comment question are easier then last year (difference in means and relations between U1 and sample mean of U ouch)
    Above and outside are almost the same thing as applied to this question. The difference is only that outside includes below? Seems really silly to discriminate on that...
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    A lot of people are getting 12.7 for 5(c), but surely for an unbiased estimate you have to multiply this by 36/35, giving 13.01, or thereabouts?
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    (Original post by Euclidean)
    Above and outside are almost the same thing as applied to this question. The difference is only that outside includes below? Seems really silly to discriminate on that...
    s3 have a history of silly mark schemes......
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    (Original post by tomdodd4598)
    A lot of people are getting 12.7 for 5(c), but surely for an unbiased estimate you have to multiply this by 36/35, giving 13.01, or thereabouts?
    you get 12.7 after multiplying 36/35.
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    (Original post by tomdodd4598)
    A lot of people are getting 12.7 for 5(c), but surely for an unbiased estimate you have to multiply this by 36/35, giving 13.01, or thereabouts?
    What exactly are you talking about? The estimator for sample mean or sample variance?
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    Does anyone know how many marks 6a was worth (binomial question)??
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    And how many marks was Poisson? Q6?
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    At first I thought it went well ... but not anymore. Poisson kills me every year. Why do they have to put Poisson towards the end of the paper when I usually start panicking? UUUUURRRRGHHH
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    For the pmcc/spearman comparison, could you say that there is association but not linear?
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    (Original post by ludmila)
    And how many marks was Poisson? Q6?
    6 marks
 
 
 
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