Edexcel S2 - 27th June 2016 AM

Original post by imran_

my firm wanted ABB, so im not too fussed with a B in maths but could've done better

When you're actually at uni I'm sure you'll feel better :smile:

Reply 981

Original post by Supermanxxxxxx

I need aaa so literally just screwed my plans for dentistry

Posted from TSR Mobile

ahhhh I hope you still get it - I'm sure the boundaries will go down a bit !

Reply 982

Armpits

Is the median of a quadratic pdf = the interval/2 ?

Reply 983

Woffus

1

Can someone explain why you use 55.5 as a correction rather than 54.5?
Think I ended up getting 221 students so how many marks would i lose if thats the only mistake?

Reply 984

Student403

19

Original post by fefssdf

Twitter was sending lots of hate towards Peter so hopefully that counts in our favour :smile:

.

My profile pic is a page of chapter 2 from c3 :smile:

Poor Peter lol

Ah okay!

Reply 985

Lamatata

3

For the Normal Distribution question, I forgot to change 55 to 55.5, how many marks will I lose?

Reply 986

dnpnstn

I got between 68-71 because I dicked up Q3 by using E(R)^2 instead of E(R^2) and then, after using a continuity correction, did the question again to check my working without the correction, and got 223 :smile:

))))) RIP me, there goes the A*

Reply 987

swetu1

1

Original post by Armpits

This is so depressing, needed to do well in S2 to get an A, probably got a B now, will consider suicide.

i feel u mate.. I might do the same thing..

Reply 988

Original post by Student403

Poor Peter lol

Ah okay!

I know ahaha

Reply 989

Mathskid137

1

can you integrate pi*R^2 and divide by 4 for the mean area. I got the same answer using this method..

Reply 990

Original post by dnpnstn

I got between 68-71 because I dicked up Q3 by using E(R)^2 instead of E(R^2) and then, after using a continuity correction, did the question again to check my working without the correction, and got 223 :smile:

))))) RIP me, there goes the A*

for an a* you need 90ums average across C3 and C4... your grade in S2 has no weight whatsoever towards whether you do/don't get an A*, unless you're concerned about the individual grade of the unit itself ?

Reply 991

AlexFrangos

Anyone who did S2 IAL?

Reply 992

Original post by Lamatata

For the Normal Distribution question, I forgot to change 55 to 55.5, how many marks will I lose?

Not sure but probably quite a few ...

Reply 993

MathsAndChess

11

I'll be posting model solutions this evening as I did with C4.

Reply 994

Armpits

Original post by Woffus

Can someone explain why you use 55.5 as a correction rather than 54.5?
Think I ended up getting 221 students so how many marks would i lose if thats the only mistake?

>55= 56 or more

correction

>=55.5

as 55.5 would round to 56

Reply 995

dnpnstn

Original post by fefssdf

for an a* you need 90ums average across C3 and C4... your grade in S2 has no weight whatsoever towards whether you do/don't get an A*, unless you're concerned about the individual grade of the unit itself ?

The A* in further maths requires an avg of 90 over 3 (non C3/4) modules, I was probably averaging slightly below that before the paper, and now I'm boarderline 90 with my best case scenario of this paper.. So I don't think I've made it :frown:

The annoying thing is, everything I've answered I understood, and I've either made a stupid mistake by not thinking or a calculator/arithmetic error somewhere.. The grade boundaries are too tight to let me off from stupid mistakes:/

Reply 996