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# Arsey's S1 Edexcel Summer 2013 Model Solutions BOTH PAPERS watch

1. Arsey, sorry if someone already asked this, but around what mark do you think a B would be on this paper?

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2. (Original post by Xx4L3x)
I think a mark will be lost because the question did state a PERCENTAGE and although a decimal is the equivalent, a decimal is not a percentage

Has there been anything similar in the past?
You could be right but I suspect it will say oe.

2.74% is the same as 2.74/100 that is what percent means. 2.74 = 0.0274.

It would be daft to penalise for leaving it as 0.0274.

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3. (Original post by Arsey)
I doubt you will lose a mark for either of these

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Sweet, i hope so! Thank you for the mark scheme too!

...and if not, I hope 74 is still full UMS
4. For 1d my a value was wrong i did a=110/9-(0.015*7150/9) = 0.284 I forgot the minus with the b value. how many marks would i lose on that question. Part e and f are linked to part d but my answers for e and f are correct. would I gain full marks for these questions. For the rest of the paper i have everything correct
5. (Original post by JodieW)
Arsey, sorry if someone already asked this, but around what mark do you think a B would be on this paper?

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There were plenty of easy marks so I doubt anyone will have bombed. So prob 7 marks per 10ums. 55 would be my guess

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6. (Original post by Arsey)
There were plenty of easy marks so I doubt anyone will have bombed. So prob 7 marks per 10ums. 55 would be my guess

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So would 55 be 70 ums?

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7. (Original post by Robbie242)
According to Arsey's boundaries (not sure if entirely true) 68/75 is roughly bang on 90ums
What do you mean by that?

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8. (Original post by Razer_M)
Sweet, i hope so! Thank you for the mark scheme too!

...and if not, I hope 74 is still full UMS
omg get out be glad you will get an A !!
9. WOw I think 59 / 60 / 61 will be an A. A lot of easy marks were lost and many ran out of time
10. (Original post by Arsey)
What do you mean by that?

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think he means that with the assumption that 62 is an A , then 68 would be 90 UMS. would be quite nice haha , although i still think it'll be around 60 ish for the A
11. (Original post by Arsey)
What do you mean by that?

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Hi Arsey,
I would like to say your Revision notes for M1 and S1 were awesome! I was wondering if you have notes for C3 and C4?
Particularly for C4, I don't understand the applied bit of Differentiation and Vectors!
I would appreciate (and others would too) if you can upload them please thank you.
12. (Original post by Arsey)
What do you mean by that?

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your spread sheet data suggests that a 62/75 boundary for 80ums corresponds with 90ums being at 68/75 on one of the S1 papers, hence why it may not be true every time
14. Hey Arsey, just wanted to know, for the last part of question 1 did you use rounded up values from your regression equation. I say that because you've got the answer as 7.5 (and dear god I wouldn't dream of arguing with you!) and I got 7.9. Would I still get the full marks there?

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15. could we please have a poll on this thread to see how everyone did
16. (Original post by Arsey)
You could be right but I suspect it will say oe.

2.74% is the same as 2.74/100 that is what percent means. 2.74 = 0.0274.

It would be daft to penalise for leaving it as 0.0274.

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I think they are looking for the actual % though
17. For question 1b, I worked out the PMCC using the rounded values from part a instead of the unrounded values. Will I be penalised for it?
18. (Original post by wrestlingfan55)
For question 1b, I worked out the PMCC using the rounded values from part a instead of the unrounded values. Will I be penalised for it?
nope - pretty certain the answer you get with that still rounds to -0.95 anyway
19. (Original post by Lucy_95)
I did this! i think it's right because venn diagrams can show probabilities and actual numbers, so if it adds up to 1, then it's fine! i think anyway :P
Cool!! I checked other mark schemes and it doesn't really mention this!!
I did this too!!
Hope we get the marks and Arsey said it okay

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20. This thread is so useful

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