Year 12s: what will be the first way you research your future options? >>

OCR MEI - S1 - 20th May 2015

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Reply 180

Solz01

What did people get for the last part of the Venn diagram question?

Reply 181

jpetersgill

Original post by Cadherin

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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Reply 182

Duskstar

Original post by iamJOM

We've been allowed to take the question paper out of all of our maths exams so far :smile:

Our invigilators take our papers then the question booklets before we even move :frown:

Reply 183

thecalmmorning

Original post by Manexopi

Ok phew I got the same :biggrin:

me too!

Reply 184

Duskstar

Original post by Solz01

What did people get for the last part of the Venn diagram question?

15/67 whatever that was

Reply 185

thecalmmorning

Original post by Cadherin

Yes, I'm pretty sure the cherry one was 1/19 (I seem to remember).

That is what I got

Reply 186

username1084917

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?

Reply 187

caffeinefuelled

Why did the alpha thing have to be in radians?

Reply 188

iamJOM

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

Reply 189

Rubato

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.

Reply 190

chemistryislove

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

Reply 191

username1084917

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

Reply 192

2ChemistryIsCool

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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Reply 193

Gladiatorsword

Unofficial mark scheme?

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Reply 194

2ChemistryIsCool

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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Reply 195

Darcy1

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

Reply 196

joshgofe

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

Reply 197

leaf3

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