thestruggleisreal28 Posted May 12, 2016 Report Share Posted May 12, 2016 So how'd it go? I did TZ2 and I found it to be much easier than P1. Hoping for a 5 or maybe a low 6 on this. (PS. Math isn't my strongest suit at all, but I really need a 5 overall for my university offer!) Reply Link to post Share on other sites More sharing options...
isaiguana Posted May 12, 2016 Report Share Posted May 12, 2016 I did TZ1 and I honestly found it to be harder than paper 1, mostly as it was very long... Unfortunately I left one question blank, and I was unable to solve another, but I answered all of the section B questions so I still believe that I did well. The goat question was particularly unpopular among my classmates and I. Reply Link to post Share on other sites More sharing options...
Chen L Posted May 12, 2016 Report Share Posted May 12, 2016 It was way eaiser than expected for TZ2. Have a sneaky feeling that the Asian kids gonna ace this paper which means our EU candidates will suffer high boundaries... 1 Reply Link to post Share on other sites More sharing options...
Seung Hun Han Posted May 12, 2016 Report Share Posted May 12, 2016 To be honest, I solved section A in like 40 minutes. It was supereasy and expect pretty good marks on paper 2 unless I made dumb mistakes. Section B the first question was just amazing. Second question. Hmm.. have some doubts, but I think I've managed to solve it thru. The last question especially the 10 mark sub-question was confusing, but I think I probably got some grades for the method. Rest of the question was pretty straightforward. Generally, I think this is the most common "IB" pattern. They give you hell in a paper one and become pretty generous in paper 2. Hoping to ace the paper 3 next wednesday and just relax my post-high school life. Reply Link to post Share on other sites More sharing options...
Seung Hun Han Posted May 13, 2016 Report Share Posted May 13, 2016 7 hours ago, Andrew said: I am so jealous. When I got my 5 minutes reading time I was like, god this crap so easy. Then I got stuck in section b with the graphs and I lost an hour. Then I tried to catch up doing section A, and I realized I had better just started with section A, as I could have scored higher with all those easy questions. The one with the Poisson distribution though got me thinking. and the one about probability and the balls. You had balls like :1,2,2,3,3,3. So the only even "the sum of three balls randomly taken is 5", was only 1, so the probability was (1)/nCr(6,3). Right? And the one with the Poisson distribution said like, 5 customers come in the first 4 hours. what's the probability that 3 customers will come in the first hour? So I thought that M=4/5 and you just plugged stuff in in the formula and got like .3243 Did you take TZ1 exam? I didn't i don't remember seeing that type of question though poisson related question did come out. Reply Link to post Share on other sites More sharing options...
thecsstudent Posted May 13, 2016 Report Share Posted May 13, 2016 What even was that goat question in TZ1? Read the problem and was like nope and left it blank lol 1 Reply Link to post Share on other sites More sharing options...
Guest SNJERIN Posted May 13, 2016 Report Share Posted May 13, 2016 1 hour ago, Seung Hun Han said: Did you take TZ1 exam? I didn't i don't remember seeing that type of question though poisson related question did come out. As far as I remember the poisson distribution question was about faulty in making glass of area 5m^2 for TZ2 Reply Link to post Share on other sites More sharing options...
Seung Hun Han Posted May 13, 2016 Report Share Posted May 13, 2016 9 minutes ago, Haitham Wahid said: As far as I remember the poisson distribution question was about faulty in making glass of area 5m^2 for TZ2 Yea. The glass question... Reply Link to post Share on other sites More sharing options...
Guest Posted May 13, 2016 Report Share Posted May 13, 2016 1 hour ago, Haitham Wahid said: As far as I remember the poisson distribution question was about faulty in making glass of area 5m^2 for TZ2 Wait which question is it?? I can't remember the questions but it would be great if someone could remind me so that we can compare our results... Reply Link to post Share on other sites More sharing options...
thestruggleisreal28 Posted May 13, 2016 Author Report Share Posted May 13, 2016 https://drive.google.com/file/d/0B2n2uzoP2_48eUNValNDMFBYQXIyaDNzS1ZaRjh0c1pOOW53/view ^For anyone who's interested in checking the answers out. Done by some random math teacher. Reply Link to post Share on other sites More sharing options...
DSi Posted May 13, 2016 Report Share Posted May 13, 2016 (edited) 4 hours ago, thestruggleisreal28 said: https://drive.google.com/file/d/0B2n2uzoP2_48eUNValNDMFBYQXIyaDNzS1ZaRjh0c1pOOW53/view ^For anyone who's interested in checking the answers out. Done by some random math teacher. Thanks for sharing! An error was made at 11ciii. The correct answer is (4x^3-420)/(x^2+35)^3. Another error is at 11d, it is bounded above as well at x=13.8. Third error at 12b. The expression given is for e^x rather than x. Edited May 13, 2016 by DSi Reply Link to post Share on other sites More sharing options...
Guest SNJERIN Posted May 13, 2016 Report Share Posted May 13, 2016 27 minutes ago, DSi said: Thanks for sharing! An error was made at 11ciii. The correct answer is (4x^3-420)/(x^2+35)^3. Another error is at 11d, it is bounded above as well at x=13.8. Third error at 12b. The expression given is for e^x rather than x. I think there is a little mistake in Q5 as well. The range of ƒ is [0,∞[ and not ]0,∞ [ Reply Link to post Share on other sites More sharing options...
thecsstudent Posted May 13, 2016 Report Share Posted May 13, 2016 8 hours ago, Andrew said: I had no goat question I always aced questions with goats. Was it, by any chance, a goat tied to a pole and moving through a certain range and you had to calculate circle stuff? It was in TZ1 . Yes that was it but it wasn't just a circle, the field was triangular and it was a weird question. Reply Link to post Share on other sites More sharing options...
Guest Posted May 13, 2016 Report Share Posted May 13, 2016 7 hours ago, thestruggleisreal28 said: https://drive.google.com/file/d/0B2n2uzoP2_48eUNValNDMFBYQXIyaDNzS1ZaRjh0c1pOOW53/view ^For anyone who's interested in checking the answers out. Done by some random math teacher. thanks is there any change that there is one for paper 1 as well? Reply Link to post Share on other sites More sharing options...
thestruggleisreal28 Posted May 14, 2016 Author Report Share Posted May 14, 2016 Yup right here https://drive.google.com/file/d/0B2n2uzoP2_48MUFuTWYtUnJYSHc/view Reply Link to post Share on other sites More sharing options...
Guest SNJERIN Posted May 14, 2016 Report Share Posted May 14, 2016 4 hours ago, thestruggleisreal28 said: Yup right here https://drive.google.com/file/d/0B2n2uzoP2_48MUFuTWYtUnJYSHc/view Thanks a lot ! Reply Link to post Share on other sites More sharing options...
eross Posted May 14, 2016 Report Share Posted May 14, 2016 I did tz1 and found it much harder than a lot of the past papers I had done The goat question... i just left it blank. AND the poisson one gave me trouble too. and don't even get me started on section B... Reply Link to post Share on other sites More sharing options...
kw0573 Posted May 14, 2016 Report Share Posted May 14, 2016 On 5/12/2016 at 6:19 PM, Andrew said: The one with the Poisson distribution though got me thinking. and the one about probability and the balls. You had balls like :1,2,2,3,3,3. So the only even "the sum of three balls randomly taken is 5", was only 1, so the probability was (1)/nCr(6,3). Right? And the one with the Poisson distribution said like, 5 customers come in the first 4 hours. what's the probability that 3 customers will come in the first hour? So I thought that M=4/5 and you just plugged stuff in in the formula and got like .3243 Yep. Should be 1/nCr(6, 3) For poisson you want mean PER HOUR, which is M = 5/4. You can get follow through marks though. Reply Link to post Share on other sites More sharing options...
Guest iblearner Posted May 14, 2016 Report Share Posted May 14, 2016 On 5/13/2016 at 3:03 PM, Andrew said: I guess (Sweden's TZ1, right?) There were actually two Poisson distribution questions, but the other was too long and worth only 5 marks that I just left it blank. Also, the one with the logarithms gave me a weird answer, so I assume I was wrong, but I had no time to correct it. The rowers time with 1, and 2 rowers was like 365 and 370 or sth like that. But I got like 3850, so I guess I was off by a factor 100, and I just kind of smeared in the decimal point in two places in hope that the examiner sees I was aware of my mistake and will feel sorry for me. idk if we got the same question but if the log question was the simultaneous one, i got e^something for both x and y. Reply Link to post Share on other sites More sharing options...
Guest iblearner Posted May 14, 2016 Report Share Posted May 14, 2016 I thought Paper 2 was so much easier than Paper 1. Hoping to do well in Paper 3 too. Reply Link to post Share on other sites More sharing options...
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