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Edexcel S1

I've just come out of my S1 exam (Edexcel). I think it went alright. I was just wondering if anyone will work out the answers to it or scan the paper in. If so, I'd be grateful if you could let me know.

Cheers

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Reply 1
Avatar for riks2004
riks2004
9
schuppy2812
I've just come out of my S1 exam (Edexcel). I think it went alright. I was just wondering if anyone will work out the answers to it or scan the paper in. If so, I'd be grateful if you could let me know.

Cheers


hey wat did ppl get for the standard deviation for the normal distrubution, i got 40.7 summin like that
Reply 2
Avatar for capslock
capslock
1
riks2004
hey wat did ppl get for the standard deviation for the normal distrubution, i got 40.7 summin like that

THink i got that too.
Reply 3
Avatar for Kiril
Kiril
1
this paper was a fucking bitch ;(
Reply 4
Avatar for schuppy2812
schuppy2812
OP
For the standard deviation i got something like that too.
Seems so high - quite absurd, but i am sure that my calculations were right
Reply 5
Avatar for riks2004
riks2004
9
yeh it was quite high, o well edexcel tryin to trick us :mad: but i didnt fall for it, neways wat did people get for the 1st question?
Reply 6
Avatar for capslock
capslock
1
riks2004
yeh it was quite high, o well edexcel tryin to trick us :mad: but i didnt fall for it, neways wat did people get for the 1st question?

Drew a sample space and counted 21/36 = 7/12 I think it was...
Reply 7
Avatar for riks2004
riks2004
9
o ok, so wat did u think of the paper overall, i 4t it was quite tricky compared to last years paper
Reply 8
Avatar for schuppy124
schuppy124
capslock
Drew a sample space and counted 21/36 = 7/12 I think it was...


That's exactly what i did and got for an answer
Reply 9
Avatar for schuppy124
schuppy124
riks2004
o ok, so wat did u think of the paper overall, i 4t it was quite tricky compared to last years paper


i agree. I made some silly mistakes in some of my calculations coz i didn't read the question properly, but once i noticed that i was wrong, i spotted all of my mistakes (or hopefully all of them at least!) :rolleyes: :confused: :wink:
Reply 10
Avatar for riks2004
riks2004
9
u kno wen u drew the graph, did u start the axis from zero?
Reply 11
Avatar for schuppy124
schuppy124
d'you mean the scatter diagram?
no i didn't, coz then there would have been a huge gap at the beginning and it would have been all squashed
Reply 12
Avatar for riks2004
riks2004
9
kool thats wat i did
Reply 13
Avatar for MJ_23
MJ_23
for the 1st one i got 1/3 since the only way to make 5 was with 2's and 3's, hope im sorta right :confused:

also started at 500 with that indent thing /\/ in the x axis, i thought about coding to start off with but it wasn't worth it for 4 marks so i left it out.
Reply 14
Avatar for MBR50
MBR50
The graph - used broken scale

Normal distribution - 0.3% (0.003) anybody?

Discrete random variables a = 0.4 b=0.1, P(0<X<1.5) = P(1) = ?

Last ques c) P(C) = 0.625

1) 7/12

2) r = 0.87. a = around 230. b = 1.44

any comments?
Reply 15
Avatar for riks2004
riks2004
9
did u get 0.8 summin for the PMCC
Reply 16
Avatar for riks2004
riks2004
9
MBR50
The graph - used broken scale

Normal distribution - 0.3% (0.003) anybody?

Discrete random variables a = 0.4 b=0.1, P(0<X<1.5) = P(1) = ?

Last ques c) P(C) = 0.625

1) 7/12

2) r = 0.87. a = around 230. b = 1.44

any comments?


yep got all of them :biggrin: but i didnt know u had to express the normal distribution q as a percentage :eek: i got 0.003
Reply 17
Avatar for MBR50
MBR50
no you didn't... but i did anyway!!!
Reply 18
Avatar for Godmaster
Godmaster
7
How can the standard deviation be realli high if onli 20% of ppl stay in the place for 125minutes or more:s-smilie: i got 41 oddish for the standard deviation...i got 200sumtin first which cnt b rite...
Reply 19
Avatar for Sinan
Sinan
what was the range for values of h

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