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Official Edexcel Statistics 1 thread - 10th June 2014

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Reply 360

TH3-FL45H

Original post by Cpie21

I got 172.9 and I didn't round up :frown:

how many marks do you think I would get?

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They didn't specify how accurate it should be so it should be awrt 173 (3.s.f) so you'll get full marks

Reply 361

GunnerGuy

I think I'm getting 72/75

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Reply 362

Jayqwe

Did anyone else need to draw the venn diagram for the last question?

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Reply 363

GunnerGuy

Original post by Jayqwe

Did anyone else need to draw the venn diagram for the last question?

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I did

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Reply 364

sciencegeeks

Is there an unofficial markscheme anywhere?

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Reply 365

MissColly

http://www.thestudentroom.co.uk/attachment.php?attachmentid=294201&d=1402404441

(edited 9 years ago)

Reply 366

Cpie21

Original post by Ceryni

Depends; could be full marks because often the mark scheme accepts anything that will round to the answer. Alternatively, the mark scheme may want it to some decimal places, in which case 172.9 would be better than 173; either way, you're probably fine!!

Oh phew! Thanks :biggrin:

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Reply 367

MAD Phil

Just seen S1R in the Emporium, so had a quick go at it in between fielding M2 questions from my revision class. No checking at all has been done, so tell me about any mistakes.

S1R 2014 MAD Phil.pdf557.5KB

Reply 368

TH3-FL45H

I think I got it mostly right apart from:

1a) where I used (n+1)/4 to find the quartiles and I got the same answers though.
3f) where I left it as m=1383.
8c) where I put P(A n B) = P(A|B)P(B) which is P(A n B) = 0.6 x (0.22 + P(A n B)) and then worked out the equation to get the right answer.

How many marks if any would I lose?

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