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# Edexcel S2 - 27th June 2016 AM watch

• View Poll Results: How did you find the Edexcel S2 exam?
Very hard
145
14.71%
Hard
331
33.57%
Normal
293
29.72%
Easy
152
15.42%
Very easy
65
6.59%

1. (Original post by Rispi14)
Of course you can! I think it depends on how you did last year, what was your ums ?
My UMS was 241, however I resat C2 and S1 this year and hopefully I've bumped up my UMS a bit. Genuinely worried after S2!
2. (Original post by DesignPredator)
4 marks
Ok, not good. Will 71/75 get me 90+ ?
3. (Original post by fefssdf)
you should still get a B ...
Thanks for your help, I hope I do!
4. (Original post by Diraculous)
Correct
Cheers, hopefully going to get 100 then
5. (Original post by Diraculous)
I'm fairly sure it was 3 marks.
I thought it was 4, but I hope you're right! I got that one wrong because my brain broke on me
6. (Original post by mangoli)
Went alright but was nothing like the past papers. Got stuck on finding k for 20 minutes and decided to move on, how did you guys do it? I got k = 1/(a+21) and couldnt hew another equation in a from it
for K you had to use the fact that F(3) = 1, and that F(2)= 0 so then you ended up with two equations in terms of a,b, and K, and then you used these to isolate out K on its own and then just solved for it ? so K was 1/9
7. (Original post by Diraculous)
I'm fairly sure it was 3 marks.
That was definitely 4 marks, I'm 100% sure
8. (Original post by Foutre en L'air)
That was definitely 4 marks, I'm 100% sure
agree it was 4 marks
9. (Original post by Foutre en L'air)
That was definitely 4 marks, I'm 100% sure
Alright, believe that. Hopefully that won't lose me an A*. I would be mad at myself.
10. (Original post by Jamo :))
It was 0.2n, so you had to rearrange this equation into a quadratic by multiplying up then squaring: 7/4 = (55.5-0.2n)/(squareroot(0.16n))
oh god hopefully i wrote down 0.2 and not 0.02 but can't remember argh
No worries. What do you think 66/75 would be in terms of UMS?
Maybe around 86? In the 2014R paper, it would actually have been like 91, but then only a high B on last year's paper...
12. Has anyone made a markscheme yet????
13. Would 69/70 be about90 ums?

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14. On the "find k" question, would solving F(2) = 0 to find that a = -12 probably be sufficient for 2/4 marks? (I also said that F(3) = 1, but then I completely messed-up the substitution!)
15. (Original post by Datta10)

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Possibly, 71 was 90 last year
16. (Original post by Datta10)

Posted from TSR Mobile
I would say so!
17. Soo, anyone have any ideas of grade boundaries? Id say probably a mark or two lower than last year, as i think last years paper was easier
18. I thought last years paper was much more difficult, just me??

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19. (Original post by dnpnstn)
Soo, anyone have any ideas of grade boundaries? Id say probably a mark or two lower than last year, as i think last years paper was easier
I think its gonna drop quite a bit tbh
20. (Original post by fefssdf)
for this question I didn't end up with a quadratic... I had the mean = 0.02n and then variance i had it as 0.16n.. is this wrong ?
nah i got that but you end up with a quadratic which solves to 342.25 (i think) and 225. but it must be an integer. so 225.

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