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    Seemed fine, how'd everybody find it?

    Inb4 "On the table hurhurhurhurhur!"
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    I loved that paper, apart from question 4? Was a bit different but I think I did the right thing!
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    (Original post by ahannah)
    I loved that paper, apart from question 4? Was a bit different but I think I did the right thing!
    That the one with the dogs? How'd you deal with that?
    Yeah, it was a tad odd.
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    (Original post by WhisperingTide)
    That the one with the dogs? How'd you deal with that?
    Yeah, it was a tad odd.
    no the difference between two sample means?
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    (Original post by ahannah)
    no the difference between two sample means?
    Oh? I found that to be fairly fine, just took a bit of work, I think it was actually the second part of the first question that threw me; took me a while to work out how to do it. :P
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    (Original post by WhisperingTide)
    Oh? I found that to be fairly fine, just took a bit of work, I think it was actually the second part of the first question that threw me; took me a while to work out how to do it. :P
    what did you do for it? Haha I'm not sure if I did that right... i worked out P(X=4) and P(Y=4) using the formula for poisson distribution and multiplied them...
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    (Original post by ahannah)
    what did you do for it? Haha I'm not sure if I did that right... i worked out P(X=4) and P(Y=4) using the formula for poisson distribution and multiplied them...
    Well, I got E(W) = 6 and Var(W) = 36
    Made that into a Normal: N~( 6 , 36 )
    And continuity corrected either side, giving: P(3.5 < 4 < 4.5)
    Not sure if that's right, though. >.> What did you get as an answer?
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    (Original post by WhisperingTide)
    Well, I got E(W) = 6 and Var(W) = 36
    Made that into a Normal: N~( 6 , 36 )
    And continuity corrected either side, giving: P(3.5 < 4 < 4.5)
    Not sure if that's right, though. >.> What did you get as an answer?
    hmm why would you make a normal approximation? It wasn't a large enough mean value surely? I can't remember, I think it was around 0.015?
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    (Original post by ahannah)
    hmm why would you make a normal approximation? It wasn't a large enough mean value surely? I can't remember, I think it was around 0.015?
    I seem to recall combinations of observations of random variables are normally distributed by default, or something like that. Actually, I think I got around that anyway, so that's awesome!
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    (Original post by WhisperingTide)
    Well, I got E(W) = 6 and Var(W) = 36
    Made that into a Normal: N~( 6 , 36 )
    And continuity corrected either side, giving: P(3.5 < 4 < 4.5)
    Not sure if that's right, though. >.> What did you get as an answer?
    I got the same values for E(W) and Var(W), but for the second part I multiplied the two poisson values to get Po~(6), and then did P(W≥4) - P(W≥5), but that was just a blind shot in the dark! Hopefully someone will be able to upload the paper on here.
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    What do people reckon the grade boundaries will be? Can S2 count towards an A* in further maths?
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    (Original post by roganjosh4444)
    What do people reckon the grade boundaries will be? Can S2 count towards an A* in further maths?
    Average and yes.

    You need at least 90 UMS in the best 3 of: S2, S3, FP2, FP3, M2, M3.
 
 
 
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