AS Edexcel S1 - (5th June 2015) Exam Thread

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Reply 1980

vuvuzela

Original post by GrigorijC1997

Did people include the outlier for the very first question??? Biggest dilemma going.

No. You don't.

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Reply 1981

pauux

Original post by кяя

I wrote two ranges and I put (including outlier) and (excluding outlier). Do you think this is okay and will it be marked right?

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I think the examiner will mark only the first answer

Reply 1982

Don Pedro K.

Original post by vuvuzela

There was more wording than a standard S1 paper, so grade boundaries will be of a medium difficulty paper. Higher than last year, lower than the year before would be my educated guess

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Uhm last year A was 60 and 61 in June 13. xD

Reply 1983

Mousyy

Original post by SirRaza97

Bruh i got 133.2 for Var(X). Idk how but okay then.

I think I got the same as you, remember getting a decimal but everyone else seems to be getting whole numbers :confused:

Reply 1984

AJC1997

Original post by jshep000

Not at first because I hadn't answered that pmcc bit, I answered that bit when I finished and went back over. Hey calm down it was only 1/2 marks ill drop on that :frown:

you should've just started talking about negative externalities and opportunity cost haha, wonder if they're allowed to award marks for things like that, I doubt it.

Reply 1985

peacefully_

Original post by thehollowcrown

Do you include outliers in calculating the range

yh i think so

Reply 1986

Questioner1234

What was the answer for second to last question a iv). P(AuC) ????
Everyone I spoke to has different answers

Reply 1987

jshep000

Original post by AJC1997

you should've just started talking about negative externalities and opportunity cost haha, wonder if they're allowed to award marks for things like that, I doubt it.

lmao damn economics -_- maybe they would you don't know man. I bet the mark scheme for that question will be lenient

Reply 1988

peacefully_

Original post by Mousyy

I think I got the same as you, remember getting a decimal but everyone else seems to be getting whole numbers :confused:

i got a whole number too, how did you get decimals?

Reply 1989

Don Pedro K.

Original post by кяя

I got 306 - (E(X))^2. I forgot what the final answer was though. I think it was around 130.

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'Twas 162 ---- 306 - (12)^2 = 162

Reply 1990

Questioner1234

Original post by кяя

I got 306 - (E(X))^2. I forgot what the final answer was though. I think it was around 130.

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133

Reply 1991

ALevelBro

Really easy paper, unfortunately didn't have time for questions 4 and 6... just... ten... more... minutes...

Reply 1992

camac

Original post by Angelo12231

Arseys solution will be up in the afternoon. Though I won't look at them purely because this was an easy paper... any more than 6 marks dropped will devastate me for the whole summer.

alright mate congrats

Reply 1993

DesignPredator

A 61
B 55
C 49
People are saying it was easier, but I would argue that it was a similar difficulty to past papers.

Reply 1994

KINGYusuf

I got 162 for Var(X) or something?

Reply 1995

Dinaa

C2 was death but S1 was worse, IMO :erm:

=failed.

Reply 1996

dominicwild

This was my reasoning for the housing question, of which would be closer.

I stated J would be closer, as it was more expensive. Due to the negative correlation, I drew graphs like this:

A high P, gives a low D. Therefore the highest P, gives the lowest D. Which was J in this case.

Reply 1997

Ruuth

Wait, WHAT OUTLIER??? :frown:

Reply 1998

AJC1997

it seems like it's 50/50 on whether you include the outlier or not for the range, I've seen examples where you do include it and some where you don't include, But I think you only exclude it if they specifically tell you to? Honestly they should just accept either -_-

Reply 1999

lemon8

Original post by кяя

I wrote two ranges and I put (including outlier) and (excluding outlier). Do you think this is okay and will it be marked right?

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no i dont think it will

sitting on the fence in ur exams is never a good idea sorry

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AS Edexcel S1 - (5th June 2015) Exam Thread

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