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OCR MEI - S1 - 20th May 2015 watch

1. (Original post by Duskstar)
Did you just sneak it out of the exam lol?
We've been allowed to take the question paper out of all of our maths exams so far
2. What did people get for the last part of the Venn diagram question?
Yes, I did that but for some reason decided to put a "1-" in front of it - how many marks will I lose, 1 or 2?
Probs just 1 bro

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4. (Original post by iamJOM)
We've been allowed to take the question paper out of all of our maths exams so far
Our invigilators take our papers then the question booklets before we even move
5. (Original post by Manexopi)
Ok phew I got the same
me too!
6. (Original post by Solz01)
What did people get for the last part of the Venn diagram question?
15/67 whatever that was
Yes, I'm pretty sure the cherry one was 1/19 (I seem to remember).
That is what I got
8. For the one about the orange chocolates.... The part where he chooses them one a weekend

The probablity that he gets the twice in a row was 0.00094 or something right?
9. Why did the alpha thing have to be in radians?
10. (Original post by Kira Yagami)
For the one about the orange chocolates.... The part where he chooses them one a weekend

The probablity that he gets the twice in a row was 0.00094 or something right?
Yup
11. (Original post by Kira Yagami)
For the one about the orange chocolates.... The part where he chooses them one a weekend

The probablity that he gets the twice in a row was 0.00094 or something right?
Thats what I got but idk if it's right.
12. (Original post by Kira Yagami)
Did people get 0.0407 or something for the P(X>=19) it was just 1- the probability from the previous answer right?
Yeah that's what I did
13. Did people get 320/12 for the mean of the stem and leaf, 31 for the mode and can't remember the median but it was the 6.5th value
14. (Original post by pruthviamin)
0.009 something for the last 1 anybody?

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I got that, but I'm not sure if it's correct?

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15. Unofficial mark scheme?

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16. (Original post by Kira Yagami)
Did people get 320/12 for the mean of the stem and leaf, 31 for the mode and can't remember the median but it was the 6.5th value
I did

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17. (Original post by Kira Yagami)
Did people get 320/12 for the mean of the stem and leaf, 31 for the mode and can't remember the median but it was the 6.5th value

29.5 I think for the median
18. Did any one use the tables for the very last question? I did P(X=>3) = 1 - P(X<=2) and got something like 0.9645? Pretty sure i got it wrong
19. Sigh I messed up the binomial before the hypothesis testing and so did my hypothesis testing with slightly wrong values, however my values were out by such a small amount I got the correct critical region and conclusion in my hypothesis testing.
I realised my binomial was wrong and changed (in an obvious way) just before the end however I didn't have time to change my hypothesis testing values.
Will I get error carried forward for this/how many marks will I lose? :O
20. (Original post by joshgofe)
29.5 I think for the median
Yeah, that's what I got

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