S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST

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

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  1. master_blaster66's Avatar
    • Peer Of The TSR Realm
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    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by silent pain)
    Listen,the u dnt have to do random distribution for the last one,take the one who dnt drink water,do it like that
    speak english
  2. Legendary's Avatar
    • Exalted Member
    • Posts: 331
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by tangkykiet)
    (81/156 )^2 i think
    Where did the square come from brudda it should be 81/128 I checked with people after
  3. amoo94's Avatar
    • Junior Member
    • Location: Guildford
    • Posts: 39
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by maxthepax)
    got n=36 literally did every past paper since 2008 and this was by FARRRrr the hardest 1. Sampling distributions of the range are not even in the text book!!!!

    My teachers (who had the paper afterwards) said they were unsure as to whether the last question was x-b(10,0.6) or x-Po(6) so i reckon they are both going to be right (I did binomial btw)
    it had to be binomial didn't it? because there was no reason for it to be Poisson?! n isn't too large for the tables and p isn't small? or i could be really wrong here!
  4. arz15's Avatar
    • Full Member
    • Posts: 131
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by Legendary)
    Where did the square come from brudda it should be 81/128 I checked with people after
    Yeah that sounds familiar
  5. JordanS94's Avatar
    • Overlord in Training
    • Location: Middle Earth
    • Posts: 2,416
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    for question 8 I just looked at the poisson table for x<=10 and it wasn't 1 so I just thought **** it binomial it is :lol:
  6. TheAdrianoo789's Avatar
    • Full Member
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    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by IAmTheChosenOne)
    which question was this?
    last one
  7. sweetascandy's Avatar
    • Peer Of The TSR Realm
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    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    At some point, I remember getting the value 0.8088 for one part of the question and squaring it for the next part. if this means anything to anyone :dontknow:
  8. agent87's Avatar
    • Junior Member
    • Posts: 37
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by IAmTheChosenOne)
    I did P(X>1.5) + P(X<2.5)...


    I hope someone would post solutions!
    I didn;t do ur way. I did the first method. Would I get any marks at all. cuz I just have to 1 minus that to get 81/128
  9. IAmTheChosenOne's Avatar
    • Respected Member
    • Posts: 227
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by amoo94)
    it had to be binomial didn't it? because there was no reason for it to be Poisson?! n isn't too large for the tables and p isn't small? or i could be really wrong here!
    i think binomial's right
  10. silent pain's Avatar
    • Full Member
    • Posts: 147
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by master_blaster66)
    speak english
    get lost
  11. Ohmzz's Avatar
    • Full Member
    • Posts: 105
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    here you go guys
    Attached Files
  12. File Type: docx S2 Jun12 Solutions.docx (55.9 KB, 633 views)
  13. tangkykiet's Avatar
    • Junior Member
    • Posts: 40
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by exam2k10)
    Wait was the last question binomial or poisson?
    some did poisson , some did binomal , i dont know . I did poisson and having doutb
  14. nakz_'s Avatar
    • Respected Member
    • Posts: 198
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by sweetascandy)
    At some point, I remember getting the value 0.8088 for one part of the question and squaring it for the next part. if this means anything to anyone :dontknow:
    i did the same
  15. sgurler's Avatar
    • New Member
    • Posts: 14
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by sweetascandy)
    At some point, I remember getting the value 0.8088 for one part of the question and squaring it for the next part. if this means anything to anyone :dontknow:
    Yes I remember the same thing
  16. Troll the Trolls's Avatar
    • Respected Member
    • Posts: 170
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by Ohmzz)
    here you go guys
    get out
  17. aaronbenham's Avatar
    • Full Member
    • Posts: 86
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by sweetascandy)
    At some point, I remember getting the value 0.8088 for one part of the question and squaring it for the next part. if this means anything to anyone :dontknow:
    YES, no idea where, BUT YES
  18. Victor-PP's Avatar
    • Peer Of The TSR Realm
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    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    Tough paper overall. Any grade boundaries guesses?
  19. tangkykiet's Avatar
    • Junior Member
    • Posts: 40
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by Ohmzz)
    here you go guys
    can you make it available for microsoft word 2003 as well please ?
  20. sweetascandy's Avatar
    • Peer Of The TSR Realm
    • Posts: 1,699
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    I don't think I've ever witnessed such a hectic thread before.
  21. Troll the Trolls's Avatar
    • Respected Member
    • Posts: 170
    Re: S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST
    (Original post by tangkykiet)
    can you make it available for microsoft word 2003 as well please ?
    its not the solutions, its a stupid joke
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