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Edexcel S1 - 15th June, 2016 [Exam Discussion] watch

1. (Original post by imran_)
69 for C1
67 for c2
52 for S1

sign, there goes my a* for maths
Not necessarily, you need 80 UMS overall with 90 UMS average in C3/4. More than achievable
2. (Original post by iMacJack)
You may get 1 or two, but you needed some reasoning behind it
Yeah i agree id hope for 1, i should have put reasoning but exam pressure just made me forget.

In some past papers reasoning wasnt needed for that identical type of question. But things change.
3. (Original post by blankboi)
how do you do the very last venn diagram question? it asked how many had dinner so i just did 77 * the probability of the dinner section and ended up getting decimal numbers
You have to use the previous parts to answer so:
P(DIBnR)*number of people + P(DIB'nR)*number of people
9/20*40 + 15/37*37 = 18+15 = 33
4. (Original post by Alec Siegert)
Not necessarily, you need 80 UMS overall with 90 UMS average in C3/4. More than achievable
ill need 80% for AS, my s1 grade would have let me down
5. (Original post by leestitt)
On that question when you have to say how the new data piece will effect the mean and Standard Deviation, will i get marks for just putting;

The mean will stay the same

The standard deviation will decreases

Yes, they usually ask this question in the IAL papers (eg January 2015) and state to 'give a reason' but on the mark schemes it only ever looks for 'decreases' or whatever it is. That explains why it's only 1 mark tbh.
6. (Original post by iMacJack)
Cheers! However this is obviously assuming I got all method marks... I'm confident with the 100 UMS in C2, and the high 90's in C1, maybe 93-95 in S1 potentially?

We'll see! Nonetheless it's a good amount of UMS so I'm happy! How are your results looking?

C1 A

C2 B

D1 A

I Got 264 UMS For those, and on Stats im looking at around 60 - 65 marks i think
7. (Original post by imran_)
ill need 80% for AS, my s1 grade would have let me down
So retake S1 next year? All hope is not lost
8. (Original post by leestitt)

C1 A

C2 B

D1 A

I Got 264 UMS For those, and on Stats im looking at around 60 - 65 marks i think
Impressive buddy! Well done
9. (Original post by studentsixth)
Yes, they usually ask this question in the IAL papers (eg January 2015) and state to 'give a reason' but on the mark schemes it only ever looks for 'decreases' or whatever it is. That explains why it's only 1 mark tbh.
Yeah thats why i didnt give a reason i should have done though
10. (Original post by iMacJack)
So retake S1 next year? All hope is not lost
im in my second year of sixth form lmao, no point really. I just hope c1 boundaries are low so i can get at least 90 ums
11. (Original post by iMacJack)
Impressive buddy! Well done
Thanks! I think your due more congratulations, on almost perfect UMS Score!
12. (Original post by leestitt)
Thanks! I think your due more congratulations, on almost perfect UMS Score!
Haha I appreciate it

But hey - it's next year that properly matters, if I can recreate this performance at A2 in my maths and further maths that'd be great

Best of luck for the rest of your exams!
13. (Original post by ejk99)
Can someone explain how to calculate Syy with sd and mean please?

Sigma = root (Syy / n)

Solve for Syy
14. (Original post by iMacJack)
Haha I appreciate it

But hey - it's next year that properly matters, if I can recreate this performance at A2 in my maths and further maths that'd be great

Best of luck for the rest of your exams!
Yeah good luck next year aswell, the way your going youl be fine i imagine , I wish someone on this thread had the S1 paper though!
15. (Original post by Nikhilm)
Lmaolol my wiggle comment got 6 likes yours got one get wrecked

1v1 rust big man
16. (Original post by imran_)
ill need 80% for AS, my s1 grade would have let me down
You got 84% raw marks, so would expect a low A. Thats similar to what I'm hoping for, as I think I averaged 62 marks. You'll be fine buddy.
17. (Original post by AmarPatel98)
Sigma = root (Syy / n)

Solve for Syy
Syy = 8 x (SD)^2 in the exam.

because

Syy = sum of(y - bary)^2
18. I thought that S1 paper was very tricky. I can see the boundaries being very low.

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19. (Original post by Arsey)
I thought that S1 paper was very tricky. I can see the boundaries being very low.

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What do you think? I think:

A: 59
B: 54
C: 48
20. (Original post by govandpolitics)
What do you think? I think:

A: 59
B: 54
C: 48
I'd say

A: 57
B: 50
C: 43

Maybe one mark added to each one

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