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    I've just come out of my S1 exam (Edexcel). I think it went alright. I was just wondering if anyone will work out the answers to it or scan the paper in. If so, I'd be grateful if you could let me know.

    Cheers
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    (Original post by schuppy2812)
    I've just come out of my S1 exam (Edexcel). I think it went alright. I was just wondering if anyone will work out the answers to it or scan the paper in. If so, I'd be grateful if you could let me know.

    Cheers
    hey wat did ppl get for the standard deviation for the normal distrubution, i got 40.7 summin like that
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    (Original post by riks2004)
    hey wat did ppl get for the standard deviation for the normal distrubution, i got 40.7 summin like that
    THink i got that too.
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    this paper was a ****ing ***** ;(
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    For the standard deviation i got something like that too.
    Seems so high - quite absurd, but i am sure that my calculations were right
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    yeh it was quite high, o well edexcel tryin to trick us :mad: but i didnt fall for it, neways wat did people get for the 1st question?
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    (Original post by riks2004)
    yeh it was quite high, o well edexcel tryin to trick us :mad: but i didnt fall for it, neways wat did people get for the 1st question?
    Drew a sample space and counted 21/36 = 7/12 I think it was...
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    o ok, so wat did u think of the paper overall, i 4t it was quite tricky compared to last years paper
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    (Original post by capslock)
    Drew a sample space and counted 21/36 = 7/12 I think it was...
    That's exactly what i did and got for an answer
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    (Original post by riks2004)
    o ok, so wat did u think of the paper overall, i 4t it was quite tricky compared to last years paper
    i agree. I made some silly mistakes in some of my calculations coz i didn't read the question properly, but once i noticed that i was wrong, i spotted all of my mistakes (or hopefully all of them at least!) :rolleyes: :confused:
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    u kno wen u drew the graph, did u start the axis from zero?
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    d'you mean the scatter diagram?
    no i didn't, coz then there would have been a huge gap at the beginning and it would have been all squashed
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    kool thats wat i did
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    for the 1st one i got 1/3 since the only way to make 5 was with 2's and 3's, hope im sorta right :confused:

    also started at 500 with that indent thing /\/ in the x axis, i thought about coding to start off with but it wasn't worth it for 4 marks so i left it out.
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    The graph - used broken scale

    Normal distribution - 0.3% (0.003) anybody?

    Discrete random variables a = 0.4 b=0.1, P(0<X<1.5) = P(1) = ?

    Last ques c) P(C) = 0.625

    1) 7/12

    2) r = 0.87. a = around 230. b = 1.44

    any comments?
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    did u get 0.8 summin for the PMCC
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    (Original post by MBR50)
    The graph - used broken scale

    Normal distribution - 0.3% (0.003) anybody?

    Discrete random variables a = 0.4 b=0.1, P(0<X<1.5) = P(1) = ?

    Last ques c) P(C) = 0.625

    1) 7/12

    2) r = 0.87. a = around 230. b = 1.44

    any comments?
    yep got all of them but i didnt know u had to express the normal distribution q as a percentage :eek: i got 0.003
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    no you didn't... but i did anyway!!!
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    How can the standard deviation be realli high if onli 20% of ppl stay in the place for 125minutes or more i got 41 oddish for the standard deviation...i got 200sumtin first which cnt b rite...
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    what was the range for values of h
 
 
 
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