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# The Official Edexcel S2 Jan 2010 Thread watch

1. Hi,

Created this so anyone with queries can whack them on here, and when the exam does pass there can be just the one thread =]

REMEMBER:
NO EXAM DISCUSSION TILL 0000 GMT OF THE 20TH OF JAN 2010!

Good Luck xx
2. Anyone else doing this ?

Last June was really hard, so I guess it would be tough to make Jan's paper much harder

S1 was pretty easy this Jan so hopefully S2 will be too
3. Does anyone have the Jan 2010 S1 paper by any chance?
4. (Original post by bmehta123)
Does anyone have the Jan 2010 S1 paper by any chance?
www.mathspapers.co.uk

Does anybody know if the 2003 papers are the same syllabus?
5. I'm not sure mate. I have tried one paper from 2004 and there were questions in their I've never seen before.

This may be because they were just different or because it was from a different syllabus
6. Can anyone explain part E here for me ?

A = 1/4 B = 1

Thanks
7. right back to 2002 are the same syllabus. TBH it doesnt seem that hard, im doing jan 2009 now, just they throw in the odd question here and there where you just gotta use common sense, and sometimes its just plain puzzling.

If you want a rediculous paper do jan 2005 lol, its nothing like any of the others and is really hard

If itsh ard it will get UMS'd up, so its fine either way =P
8. im doing this tomorrow, i really want at least a B
9. is this in the morning or afternoon
10. It is in the morning.

Also does anyone know where I can get the June 09 Paper?? Please?!1
Thanks
11. I'm doing this tomorrow. Not under too much pressure since it doesn't count towards the A* or anything, but hoping for at least 90. Although as long as I get an A I'll be happy.
12. (Original post by racshot65)
Can anyone explain part E here for me ?

A = 1/4 B = 1

Thanks
The IQR is the upper quaritle - lower quartile, thus it should contain 50% of data, thus the probability of the IQR is 0.5, but because 2 - standard deviation is outside the range of the IQR, as the value is lower than the lower quartile found, its probability would greater than 0.5 because it the entire range is greater than the IQR
13. (Original post by Ram92)
It is in the morning.

Also does anyone know where I can get the June 09 Paper?? Please?!1
Thanks

14. ill be doing this paper tomorrow: i need to get 88/100 ums to get my much needed A in further maths... for me it is very achievable so long as there are not too many "way-off-topic" questions lol.
still im a little nervous!
15. If you have a CDF with two functions how do you choose which to derive the median and quartiles from ?
16. (Original post by racshot65)
If you have a CDF with two functions how do you choose which to derive the median and quartiles from ?
i would like to know this as well, i think you can choose , i always use the simpler function out of the two
17. well u can always intergrate the first function into a PDF and see wot value it gives at its limits, then from there u'll know where the median and quartiles lies
18. (Original post by milliondollarcorpse)
I'm doing this tomorrow. Not under too much pressure since it doesn't count towards the A* or anything, but hoping for at least 90. Although as long as I get an A I'll be happy.
Sorry to burst your bubble, but these are the rules for an A* in further maths:
480/600 overall
Aggregate of 270/300 in any 3 A2 units.

S2 qualifies as an A2 unit so CAN count towards the A*.
19. (Original post by talha3)
Sorry to burst your bubble, but these are the rules for an A* in further maths:
480/600 overall
Aggregate of 270/300 in any 3 A2 units.

S2 qualifies as an A2 unit so CAN count towards the A*.
Sorry to burst your bubble, but S2 is for my normal maths A-level
20. (Original post by racshot65)
If you have a CDF with two functions how do you choose which to derive the median and quartiles from ?
For the median: if the range for the first function is 2<x<4 and for the second function 4<x<6. Plug in x=4 into the first function and if it's higher than 0.5 the median must be in the first function, and if it's lower than 0.5 it must be in the second function. Same applies for the quartiles.

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