[n_251]

(Original post by vinsta)
i reckon 62/63 for an A this year.

nah i reckon we could be looking lower (hopefully)...more like 59/60 due to the last 2 parts of question 8

that's what I hope at least

[ClaireHogben]

(Original post by n_251)
nah i reckon we could be looking lower (hopefully)...more like 59/60 due to the last 2 parts of question 8

that's what I hope at least

I'm hoping this too, although I found q7 harder than 8

anyone remember how many marks for 7d?

[vinsta]

(Original post by ClaireHogben)
I'm hoping this too, although I found q7 harder than 8

anyone remember how many marks for 7d?

which q was that? the money one was 4.

[MadMatt]

(Original post by n_251)
nah i reckon we could be looking lower (hopefully)...more like 59/60 due to the last 2 parts of question 8

that's what I hope at least

For a "normal paper" you could expect anything between 63 to 66 for an A.

A slightly harder paper would probably be only be 61/62 at most. It's almost never lower if you look at all the exminer's reports.

[lil91]

for question seven how many marks will i get if i found the wrong value of a and b but did the correct method to find the standard deviation

[ClaireHogben]

(Original post by vinsta)
which q was that? the money one was 4.

the lower quartile of f(x)

[FreshPrincess1]

Great I don't even remember half my answers!

Actual paper anyone =)?

[P34c0ck1991]

lq, was 3 i think

[Gone Revising]

(Original post by vc94)
I've worked through the paper, see if you agree!

From what I can remember, i agree with a lot of it and theres nothing that i disagree with. So i guess the space in between is my maximum of lost marks.

Although I know that I messed up on the 'statistic' definition type questions. Got c right but my answers to a and b are vague to non-existant.

[siQ]

You know for question 3, isn't x(bar) (i) not a statistic?

[n_251]

(Original post by MadMatt)
For a "normal paper" you could expect anything between 63 to 66 for an A.

A slightly harder paper would probably be only be 61/62 at most. It's almost never lower if you look at all the exminer's reports.

meh the M1 I did in Jan had 49 as the A boundary but this exam was not as much of a bitch as that one

still, I can live in hope eh? albeit false hope

[ClaireHogben]

(Original post by siQ)
You know for question 3, isn't x(bar) (i) not a statistic?

it is a statistic, because its the sample mean, which can be calculated... as opposed to the population mean, which can't

[P34c0ck1991]

yh s2 exams are usualy in the low mid 60's, 64 in jan 09

[Gone Revising]

(Original post by siQ)
You know for question 3, isn't x(bar) (i) not a statistic?

X bar is a statistic, as xbar is a sample parameter, the unknown was the population parameter (mew?)sp

[ClaireHogben]

i think i got 63.

Hope its an A!

[vinsta]

(Original post by siQ)
You know for question 3, isn't x(bar) (i) not a statistic?

but it isnt taken from a population. and in the question they told you mu and sigma were unknown.

[siQ]

(Original post by Gone Revising)
X bar is a statistic, as xbar is a sample parameter, the unknown was the population parameter (mew?)sp

Aww... thats what i get for last min revision..

Thanks.

[Virus.exe]

The last last profit question was easy (£216) but the the rest of that question and the previous question where quite ****** up. I got E(X) as 1 for part 7a and I couldn't even work out a and b for I think 7b (? ax, b-ax)

[Virus.exe]

Out of 30 people in the room that sat S2 alongside me, only 1 person said they were able to prove that x=1.7 for the x length question!!! Pisstake

[MadMatt]

(Original post by Virus.exe)
The last last profit question was easy (£216) but the the rest of that question and the previous question where quite ****** up. I got E(X) as 1 for part 7a and I couldn't even work out a and b for I think 7b (? ax, b-ax)

You had to work it out using the area of the triangle. They put it in the question as a clue I guess.