S2 Edexcel Thursday 24th May AM - PAPER & SOLUTIONS IN FIRST POST

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Reply 100

pritpals

**** edexcel

Reply 101

sweetascandy

Original post by Ohmzz

here you go guys

You CRUEL person.

Reply 102

David_Skiller

Original post by Legendary

It's 35 bruddas

bruddddah brudddddahhhhhhhhhh

it was 35 :colone:

Reply 103

IAmTheChosenOne

Original post by agent87

I didn;t do ur way. I did the first method. Would I get any marks at all. cuz I just have to 1 minus that to get 81/128

I think you will get some marks.. but not 100%sure.

Reply 104

pritpals

Ohmzz is jus a faggot with nothing better to do

Reply 105

arz15

Original post by Ohmzz

here you go guys

ban

Reply 106

agent87

Did anyone write down the answers. post it here plz

Reply 107

TheAdrianoo789

Original post by amoo94

it had to be binomial didn't it? because there was no reason for it to be Poisson?! n isn't too large for the tables and p isn't small? or i could be really wrong here!

Original post by amoo94

it had to be binomial didn't it? because there was no reason for it to be Poisson?! n isn't too large for the tables and p isn't small? or i could be really wrong here!

It was binomial! I made this mistake in January, but didn't make it again!

Reply 108

JordanS94

Original post by sweetascandy

I don't think I've ever witnessed such a hectic thread before.

Same it because question 8 and 6 were so weird :L

Reply 109

aaronbenham

The new machine produced signifcantly more defective things in the hypothesis test right?

Reply 110

alqahtani

Cab we get the paper and solutions please before I forget everything

Reply 111

silent pain

listen can anybody take a poll, I expect grade boundary for A to be 60?

Reply 112

Legendary

Original post by David_Skiller

bruddddah brudddddahhhhhhhhhh

it was 35 :colone:

Yh brudda what u sayin g

Reply 113

number23

Why dont we do an unofficial markscheme? people quote me if you know answers

1-CONTINUOUS UNIFORM
a. 0.4
b. 0.5841
c. 0.3422

2-HYPOTHESIS TESTING
x<=7 and x>=18 level=0.0432

3-APPROXIMATIONS AND ]HYPOTHSIS TESTING
n large, p small, 0.0201 < 0.05 reject null hypotheis

4-PROBABILITIES
ai. 0.0286
aii. 0.8088
b. 0.0432 or 0.2777
c. 0.1093

5-PDF
k=4, e(x)=2, var(x)=0.8, p=0.6328

6-SAMPLING DIST
ranges: o-0.3175, 1-0.6825

7-PDF AND CDF
sketch f(x), and integrate to find F(X) remember constants, 14/15

8-BIN/POISS
0.250, n=35

(edited 11 years ago)

Reply 114

master_blaster66

Original post by aaronbenham

The new machine produced signifcantly more defective things in the hypothesis test right?

yep

Reply 115

justreadthebooks

OH MY GOD just thinking about that exam makes me feel ill. i did a sampling distribution for the combinations so like 111,112,121,122,221 etc instead cause that's how i interpreted "the range of values" ...oh god :| method marks maybe????