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**HL Maths Paper 2 before/after**

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Comments

  • #302
    yoppo
    Registered Users, Registered Users 2 Posts: 206 ✭✭yoppo


    Raeral wrote: »
    Central limit theorem I believe. It's been deferred for three years though so we don't have to worry about it

    I done my LC 10 years ago and am doing it again so maybe stuck in the past :o


  • #303
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    RML wrote: »
    GOOD NEWS!!!!! :D

    http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf


    Q8 says that " This question contains a serious error. It is not possible to draw a triangle with such
    dimensions. Using different methods will yield different answers all of which are wrong because
    there are no right answers. Full marks will be awarded for this question."

    BOOM.


  • #304
    Who_Knows
    Registered Users, Registered Users 2 Posts: 13 ✭Who_Knows


    Wait for independant events is it not P(A and B) = P(A) · P(B)?
    (referring to answer for 1 (b) in http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf)


  • #305
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    I said P(AUB) = P(A) + P(B) - P(A intersection B)


  • #306
    LC 2013 SURVIVOR
    Registered Users, Registered Users 2 Posts: 23 ✭LC 2013 SURVIVOR


    Who_Knows wrote: »
    Wait for independant events is it not P(A and B) = P(A) · P(B)?
    (referring to answer for 1 (b) in http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf)

    thats exactly what i did aswell.... i think there are two methods


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  • #307
    Raeral
    Registered Users, Registered Users 2 Posts: 97 ✭✭Raeral


    RML wrote: »
    GOOD NEWS!!!!! :D

    http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf


    Q8 says that " This question contains a serious error. It is not possible to draw a triangle with such
    dimensions. Using different methods will yield different answers all of which are wrong because
    there are no right answers. Full marks will be awarded for this question."

    They probably just did it to bump up everyone's grades so it looks like project maths is working :P


  • #308
    RML
    Registered Users, Registered Users 2 Posts: 439 ✭✭RML


    Yeahh I was looking at that too. Don't what they did over there.


  • #309
    RML
    Registered Users, Registered Users 2 Posts: 439 ✭✭RML


    Who_Knows wrote: »
    Wait for independant events is it not P(A and B) = P(A) · P(B)?
    (referring to answer for 1 (b) in http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf)

    Did you get 160 as your answer?


  • #310
    RML
    Registered Users, Registered Users 2 Posts: 439 ✭✭RML


    I'd hope so as loong as you attempted the Qs


  • #311
    Undeadfred
    Registered Users, Registered Users 2 Posts: 301 ✭✭Undeadfred


    RML wrote: »
    GOOD NEWS!!!!! :D

    http://www.studentxpress.ie/ProjectMaths/HL2013AnswersP2.pdf


    Q8 says that " This question contains a serious error. It is not possible to draw a triangle with such
    dimensions. Using different methods will yield different answers all of which are wrong because
    there are no right answers. Full marks will be awarded for this question."

    Is there one for paper 1?


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  • #312
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    Left pi out of the formula bit on 9. How much will I lose?


  • #313
    Copper_pipe
    Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe


    I might send off an email to the SEC


  • #314
    RML
    Registered Users, Registered Users 2 Posts: 439 ✭✭RML


    Undeadfred wrote: »
    Is there one for paper 1?

    Solutions, yes :)
    A mistake, nope.


  • #315
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    Copper_pipe wrote: »
    I might send off an email to the SEC

    Rang them, they said the chief inspector was checking it as we spoke. Probably shite talk though.


  • #316
    LC 2013 SURVIVOR
    Registered Users, Registered Users 2 Posts: 23 ✭LC 2013 SURVIVOR


    http://www.studentxpress.ie/ProjectMaths/HL2013Answers.pdf


  • #317
    LC 2013 SURVIVOR
    Registered Users, Registered Users 2 Posts: 23 ✭LC 2013 SURVIVOR


    thats paper 1 solutions!!


  • #318
    Copper_pipe
    Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe


    Fill out this lads!

    http://examinations.ie/index.php?l=en&mc=co&sc=cf


  • #319
    Leaving Cert Student
    Registered Users, Registered Users 2 Posts: 1,026 ✭✭✭Leaving Cert Student


    How on earth do they make such a mistake?


  • #320
    Brendan1234
    Registered Users, Registered Users 2 Posts: 32 ✭Brendan1234


    If I made a balls of filling out the table in Q9, can I still get full marks in the next to parts if they are correct according to my table?


  • #321
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    If you're too lazy to type:
    To whom it may concern,
    I would like draw your attention to an error on Maths Paper 2. The specific question is question 8. No triangle exists or can exist with the dimensions given. This led to serious confusion for myself and many others during the exam. It threw off my concentration and used up a considerable amount of my time during the exam.

    I would like to enquire about how the SEC will be dealing with this.

    Thank you.


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  • #322
    Glee_GG
    Registered Users, Registered Users 2 Posts: 522 ✭✭✭Glee_GG


    It was just confirmed on RTE news there!


  • #323
    bigboy123
    Registered Users, Registered Users 2 Posts: 57 ✭✭bigboy123


    LC 2013 SURVIVOR wrote: »
    http://www.studentxpress.ie/ProjectMaths/HL2013Answers.pdf


    Better than I thought at first, would be great to get full marks (30) on question 8.
    Can't remember if my tangent equation is correct, can it be done by using the equation that divides a line in ratio of a:b?


  • #324
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    Don't think I got A1 :(


  • #325
    SecondMan
    Registered Users, Registered Users 2 Posts: 236 ✭✭SecondMan


    Prodigious wrote: »
    If you're too lazy to type:

    ****e. I went with a more...violent approach. Damn, now they have me e-mail address :(


  • #326
    Copper_pipe
    Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe


    Glee_GG wrote: »
    It was just confirmed on RTE news there!

    any link?


  • #327
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    On the tv.


  • #328
    Prodigious
    Closed Accounts Posts: 2,827 ✭✭✭Prodigious


    SecondMan wrote: »
    ****e. I went with a more...violent approach. Damn, now they have me e-mail address :(

    And phone number :D


  • #329
    RML
    Registered Users, Registered Users 2 Posts: 439 ✭✭RML


    SecondMan wrote: »
    ****e. I went with a more...violent approach. Damn, now they have me e-mail address :(

    Violence is not the answer :P


  • #330
    SecondMan
    Registered Users, Registered Users 2 Posts: 236 ✭✭SecondMan


    Prodigious wrote: »
    And phone number :D

    I didnt put my phone number it. Thank God! And me thinking everyone was starting a rebellion against the SEC :(


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  • #331
    Jackobyte
    Registered Users, Registered Users 2 Posts: 6,321 ✭✭✭Jackobyte


    Damn that question 8 anyway. I had solved it with both sine rule and cosine rule and then proceeded to waste time trying to work out why there was a discrepancy, thinking I had slipped a sign or a figure. Put it into the calculator numerous times to check. Those extra few minutes could have made the difference regarding solving Q9 which I was left short for time wise.


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