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!! Maths HL Paper 2 2016 - Before and After

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    #32
    Gahv
    Registered Users Posts: 20 ✭Gahv


    TSMGUY wrote: »
    Can't help but think the SEC is deliberately making the exams easier so there are more STEM grads to work in Dublin! Unless 1997/1998 had something in water that produced a ton of maths geniuses, there's something fishy about how everyone is finding it so easy.

    By the way, was the least amount of time the boat could spend 45 minutes roughly?

    Was it not maximum time?


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    #33
    BrownTrout
    Closed Accounts Posts: 216 ✭✭BrownTrout


    DownOneTourist wrote:
    I got 5.9 hours I think
    6 hours


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    #34
    TSMGUY
    Closed Accounts Posts: 855 ✭✭✭TSMGUY


    Drats! That was the most time... :([/QUOTE]I was thinking 6 hours, wtf?

    I think they even bolded MINIMUM time. Exam pressure can mess your reading comprehension up, for sure. Exams are such an unfair way of gauging ability. At the very least we should do modules/continuous assessment like Brits.


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    #35
    DublinArnie
    Closed Accounts Posts: 2,823 ✭✭✭DublinArnie


    TSMGUY wrote: »
    Can't help but think the SEC is deliberately making the exams easier so there are more STEM grads to work in Dublin! Unless 1997/1998 had something in water that produced a ton of maths geniuses, there's something fishy about how everyone is finding it so easy.

    By the way, was the least amount of time the boat could spend 45 minutes roughly?

    I got something like that.

    Does the answer make sense though? :o:o


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    #36
    TSMGUY
    Closed Accounts Posts: 855 ✭✭✭TSMGUY


    Gahv wrote: »
    Was it not maximum time?

    I'm confused lol


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    #37
    Gahv
    Registered Users Posts: 20 ✭Gahv


    I saw maximum time


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    #38
    TSMGUY
    Closed Accounts Posts: 855 ✭✭✭TSMGUY


    DublinArnie wrote: »
    I got something like that.

    Does the answer make sense though? :o:o

    I have failed to understand the meaning of maths :p


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    #39
    randomlad727
    Registered Users Posts: 29 ✭randomlad727


    I got 6 hours.


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    #40
    cgill
    Registered Users Posts: 184 ✭✭cgill


    Gahv wrote:
    Was it not maximum time?

    I thought it was maximum time that was bolded, I answered 5.5 hours


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    #41
    TSMGUY
    Closed Accounts Posts: 855 ✭✭✭TSMGUY


    Wait, even if it was maximum time, wouldn't it still be 45 minutes. It's not allowed to get below 1.5 so how are you getting 5.5?

    OH WAIT, F***, I just took it from the first point. There's a point where it's over 1.5 for longer isn't there? F***!


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    #42
    Gahv
    Registered Users Posts: 20 ✭Gahv


    If the ship docked in at 3.1m, would it not have to had left before it reached 1.5m

    Can someone plz explain?

    Edit: Ohh chit


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    #43
    DublinArnie
    Closed Accounts Posts: 2,823 ✭✭✭DublinArnie


    I presume this question part would only be worth five marks anyway.


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    #44
    luftmensch
    Closed Accounts Posts: 140 ✭✭luftmensch


    Anyone else find it quite hard? The circle and lottery questions were brutal. I also didn't learn hypothesis testing, so I could do that question either :(


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    #45
    DownOneTourist
    Registered Users Posts: 182 ✭✭DownOneTourist


    Gahv wrote: »
    If the ship docked in at 3.1m, would it not have to had left before it reached 1.5m

    Can someone plz explain?

    Edit: Ohh chit

    If you're looking for the maximum. It docked at 2 and waited to 1.5


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    #46
    Seaaan
    Registered Users Posts: 626 ✭✭✭Seaaan


    It was maximum. I have the paper in front of me. Also I put 6, seemed about right


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    #47
    DownOneTourist
    Registered Users Posts: 182 ✭✭DownOneTourist


    Seaaan wrote: »
    It was maximum. I have the paper in front of me

    Thank you! By the way minimum makes no sense because we weren't told how long it took the ship to unload it's cargo


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    #48
    A97
    Registered Users Posts: 390 ✭✭A97


    Obviously it's annoying to get things wrong but if you misread the question but found the minimum correctly, you'll probably get 2 out of 5. If that's the only thing you're concerned about, that's not bad going.


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    #49
    Seaaan
    Registered Users Posts: 626 ✭✭✭Seaaan


    From my own made up marking scheme, I think I got ~264 in paper 1 and ~240 paper 2.. Add my tiny Irish bonus and I might just have an A2 :D

    Thank god for attempt marks (let's hope they're as generous as usual)


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    #50
    pleindespoir
    Registered Users Posts: 66 ✭✭pleindespoir


    I didn't like Paper 2 as much as Paper 1. I'm still hoping for a high mark tho considering that I didn't leave any blanks and I did really well on Paper 1.


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    #51
    bookworm20
    Registered Users Posts: 38 ✭bookworm20


    Does anyone have answers for the lottery question cause im not sure if min were right. i got 1/2600 for the first one.


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    #52
    luftmensch
    Closed Accounts Posts: 140 ✭✭luftmensch


    bookworm20 wrote: »
    Does anyone have answers for the lottery question cause im not sure if min were right. i got 1/2600 for the first one.

    That's what I got.


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    #53
    MinnieMouse15
    Registered Users Posts: 270 ✭✭MinnieMouse15


    luftmensch wrote: »
    That's what I got.

    Same pheeewww


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    #54
    DublinArnie
    Closed Accounts Posts: 2,823 ✭✭✭DublinArnie


    luftmensch wrote: »
    That's what I got.

    Same


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    #55
    Appmaths97
    Registered Users Posts: 28 ✭Appmaths97


    how many marks will i lose for forgetting to put in 1.96 in the 95 % confidence interval ?


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    #56
    Plankton55
    Registered Users Posts: 7 ✭Plankton55


    I found the short questions very difficult and then the long questions quite easy? Anyone else? And did anyone get the answer for the equation of the circle in question 2?
    luftmensch wrote: »
    That's what I got.

    I got that too 6 hours pretty sure it said maximum as well


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    #57
    summer98
    Closed Accounts Posts: 18 ✭summer98


    What did people get for the probability of A on the Venn Diagram


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    #58
    DublinArnie
    Closed Accounts Posts: 2,823 ✭✭✭DublinArnie


    summer98 wrote: »
    What did people get for the probability of A on the Venn Diagram

    0.15 I think :o


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    #59
    Appmaths97
    Registered Users Posts: 28 ✭Appmaths97


    DublinArnie wrote: »
    0.15 :o
    i think that was the value for x.
    The probability for a was x + the centre


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    #60
    Plankton55
    Registered Users Posts: 7 ✭Plankton55


    summer98 wrote: »
    What did people get for the probability of A on the Venn Diagram

    I said 0.1 +x
    X= 0.15
    I don't know if that's right


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    #61
    DublinArnie
    Closed Accounts Posts: 2,823 ✭✭✭DublinArnie


    Appmaths97 wrote: »
    i think that was the value for x.
    The probability for a was x + the centre

    The question asked what value of x would make a and b independent events.

    So I just found x.


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