For spearmans rank I got 0.95 which I know is wrong but I did d^2 was 1 instead of 2 as I initially couldn't understand and had to do it at the end. How many method marks for recognising 1 difference in ranks then applying the wrong number for d^2 but carrying out calculation correctly? Also last question 0.072? For nadine to succeed on second shot, options: SSFS or FSFS? Giving 0.072 or does order of F and S matter for Sandra in the first option giving rise to FSSF option?

Reply 205

metasysta

Original post by ytfy

Could you send a link to the unofficial mark scheme please?

https://docs.google.com/document/d/1uL5DuXry9Kc-sc2DE1QXz7e2FqW9JsV0TmVhI79VAGI/edit?usp=sharing

Reply 206

ytfy

1) 3 Marks
2) Nadine wins on her second go, so the options:

FSFS
SSFS
FSSS

Reply 207

slothgenius

Guys on the last question,I misread it as one of them would win if they score once. Will I lose all 5 marks for the question?

Reply 208

Ozil5

Original post by sen99

I cant believe how simple it actually was :frown:

((. well there goes 5 marks. I used the wrong formula for variance but for the next part of the question i used the right method to get em2. Do you think I'll get any marks?

Yeah definitely error carried forward man and youll probably get at least 1-2 when you miscalculated the variance. I know how it feels though i misread the last question i thought they had to score one goal haha

Reply 209

slothgenius

Also I got 11 apples for Q3iii?

Reply 210

Toffeecrisp99

Original post by slothgenius

Also I got 11 apples for Q3iii?

Me too, was only an educated guess though

Reply 211

Jamie_Wills

[QUOTE=ytfy;65561033]1) 3 Marks
2) Nadine wins on her second go, so the options:

FSFS
SSFS
FSSS

For first 2 options correctly calculated how many marks will that receive out of the 3 marks 1 or 2? Lose accuracy mark for missing option out?

Reply 212

Jitesh

Original post by slothgenius

Guys on the last question,I misread it as one of them would win if they score once. Will I lose all 5 marks for the question?

dependso n working on, most likely 1 mark for each part

Reply 213

Ozil5

Why is it 1/210 instead of 4/35???

Reply 214

jadeemma

Original post by cc262626

Are you sure?! Loads at my school said was wrong

I put 12/35 in the exam but I think it's 1/70. You'd do 3c1x2c1x1c1x2c1 / 7p4
That's 1/70 but in the exam I put 7c4 as the denominator!

Reply 215

AstroNandos

Misread the last question as score once. Only noticed in the last 3 minutes so tried to change it all, got the correct working but had no time to actually write an answer :frown:

Reply 216

Ozil5

Original post by AstroNandos

Misread the last question as score once. Only noticed in the last 3 minutes so tried to change it all, got the correct working but had no time to actually write an answer :frown:

Same I thought it was for them to score one goal because I had seen that question before in a paper. 5 easy marks gone

Reply 217

liverpool7867

Original post by Ozil5

Why is it 1/210 instead of 4/35???

I got 4/35 as well but the answer is 1/210.

There are 24 ways of making BARBARA, but when we work out the number of ways =24, we don't make them distinct (i.e. we don't divide by 3!2!2!).

Like wise when we work out the total number of ways, we don't make them distinct (so we don't divide the 7! by 3!2!2!) , so the answer is 24/7! which is 1/210

Reply 218

scrlk

Thought it was an average paper. Mucked up the coded variance question, the ABBA question and the last 2 geometric questions (left out a possible combination). Hopefully I can still get an A.