mhelof Posted May 15, 2015 Report Share Posted May 15, 2015 TZ2: I couldn't do the last question at all. Bye 16 marks. The rest was actually alright. 3 Reply Link to post Share on other sites More sharing options...
Baller97 Posted May 15, 2015 Report Share Posted May 15, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. 1 Reply Link to post Share on other sites More sharing options...
AnonymousGlassesIB Posted May 15, 2015 Report Share Posted May 15, 2015 (edited) What did everyone get for the yogurt container cups? The new standard deviation? 4.87?Yup I got 4.87!! What? I couldn't solve for it myself, but I used sigma^2=4.00 because one question said that prove that sigma=2.00. Please explain how you got 4.87... Paper 2 TZ2 Edited May 15, 2015 by AnonymousGlassesIB Reply Link to post Share on other sites More sharing options...
nlebanon97 Posted May 15, 2015 Report Share Posted May 15, 2015 What did everyone get for the yogurt container cups? The new standard deviation? 4.87?Yup I got 4.87!! What? I couldn't solve for it myself, but I used sigma^2=4.00 because one question said that prove that sigma=2.00. Please explain how you got 4.87... Paper 2 TZ2 They're TZ1, TZ2's normal distribution question was different Reply Link to post Share on other sites More sharing options...
AnonymousGlassesIB Posted May 15, 2015 Report Share Posted May 15, 2015 What did everyone get for the yogurt container cups? The new standard deviation? 4.87?Yup I got 4.87!! What? I couldn't solve for it myself, but I used sigma^2=4.00 because one question said that prove that sigma=2.00. Please explain how you got 4.87... Paper 2 TZ2 They're TZ1, TZ2's normal distribution question was different Oh thanks, I almost had a stroke Reply Link to post Share on other sites More sharing options...
Shoelissa Posted May 15, 2015 Report Share Posted May 15, 2015 So. My calculator was on radian mode for the whole exam. Reply Link to post Share on other sites More sharing options...
IbTrojan Posted May 15, 2015 Author Report Share Posted May 15, 2015 So. My calculator was on radian mode for the whole exam. If you were TZ 1...I'm pretty sure I recall some questions (or maybe just one question?) where you needed to have degrees. Did you convert to degrees? Reply Link to post Share on other sites More sharing options...
Che Guevara Posted May 15, 2015 Report Share Posted May 15, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. What if we didn't get it correct? Reply Link to post Share on other sites More sharing options...
annanguyen228 Posted May 16, 2015 Report Share Posted May 16, 2015 TZ2 - last question (10) on trig wasn't hard but it was such a pain to rearrange the equation and finding the intersection points. I think my methods are right, but the answers might be wrong since I didnt have time to recheck (pretty sure the the last question of question 10 was all wrong since I forgot to subtract the area of the triangle)Question 7 wasn't bad this time. Our teacher prepared us so well for any questions dealt with discriminant and quadratics.But question 10 really blew my 7 away though. Just going to pray for a 6. Reply Link to post Share on other sites More sharing options...
armaan1928 Posted May 17, 2015 Report Share Posted May 17, 2015 Does anyone remember how many marks that 'k' question was worth for tz1 paper 2? It was the question where you had to find the domain of k so that there was only one real root. Reply Link to post Share on other sites More sharing options...
Alex Jordan Posted May 17, 2015 Report Share Posted May 17, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. What if we didn't get it correct? Generally, examiners will give you ECF (error carried forward) points if the markscheme allows. Reply Link to post Share on other sites More sharing options...
Che Guevara Posted May 17, 2015 Report Share Posted May 17, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. What if we didn't get it correct? Generally, examiners will give you ECF (error carried forward) points if the markscheme allows. Okay, so approximately how many marks out of 7 would I get? Reply Link to post Share on other sites More sharing options...
ljoeljeo1123 Posted May 17, 2015 Report Share Posted May 17, 2015 i found this exam similar to the november 2014 exam but that exam had high grade boundaries too ><it wasn't difficult for me, but it just took a lot of time bc of the kind of questions there. Also if you misread things (like me lol) you could mess up a lot. I was lucky enough to realize when i read a question wrong but others i know didn't :/ Reply Link to post Share on other sites More sharing options...
Alex Jordan Posted May 17, 2015 Report Share Posted May 17, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. What if we didn't get it correct? Generally, examiners will give you ECF (error carried forward) points if the markscheme allows. Okay, so approximately how many marks out of 7 would I get? It honestly depends on what the markscheme allows! Sometimes you can score 6 out of 7 marks, sometimes it can only be 2. It's very dependent on the marskcheme. I've seen both cases on past SL maths papers. Let's just hope for the best. Reply Link to post Share on other sites More sharing options...
Che Guevara Posted May 18, 2015 Report Share Posted May 18, 2015 Guys is it okay for the sequence question if I used the method of individually calculating the results? How many marks would I lose?I did it individually too I guess it should be fine as long as we get the correct final mark... It didn't say a specific method to solve the question so what we did is probably fine. What if we didn't get it correct? Generally, examiners will give you ECF (error carried forward) points if the markscheme allows. Okay, so approximately how many marks out of 7 would I get? It honestly depends on what the markscheme allows! Sometimes you can score 6 out of 7 marks, sometimes it can only be 2. It's very dependent on the marskcheme. I've seen both cases on past SL maths papers. Let's just hope for the best. Thanks Reply Link to post Share on other sites More sharing options...
h0rr0rsh0w Posted May 20, 2015 Report Share Posted May 20, 2015 For question 10 I understood it in the last like 10 minutes of the exam. You had to do derivatives and inverses I think and you would eventually be able to cancel out everything but the variable. But at least number 8 was easy I'm so happy that it was just simple trig Reply Link to post Share on other sites More sharing options...
Ali Hassan Posted June 7, 2015 Report Share Posted June 7, 2015 In my class we couldn't solve the last two points of section B, The one of probability and the one that had the strange square triangle thingy. Did anyone else had that exam? This was my worst exam paper, and I couldn't solve either of the 2 questions. 32 marks gone. Reply Link to post Share on other sites More sharing options...
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