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Author Topic: O level Stats 4040  (Read 8412 times)

Offline DrEvil

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Re: O level Stats 4040
« Reply #15 on: October 13, 2009, 10:41:23 am »
The ppr was very unexpected...soooo many comments we had to make...and seriously i think i'll lose 1 mark frm each comment as i know that the examiner will nt be looking fr the kind of answers i gave in the ppr...

and i am expecting 80-85 marks in this ppr...thats all i remember from the ppr..!!  :-\

and also now i'll try to get marks in 90's in ppr 2 if i'll have to confirm scoring an A grade...!! 
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Offline syntacus

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Re: O level Stats 4040
« Reply #16 on: October 13, 2009, 10:45:04 am »
Yeah the comment parts are usually the only parts that cause problems!! Numerical parts can still be usually done.Generally more marks are lost in papers two... moving averages, sampling, index numbers are all usually in sec B of this paper.Let's just hope comment questions are not there otherwise it will be fine!!!! Expectation is gonna come most probably... if it's a easy question 16/16 is expected from me at least.. like the 2007 or 2008 ones.
By the way, how do you draw the trend line through the moving averages? I usually draw it so that half the points are above the line and half below but many people do it differently..
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Offline DrEvil

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Re: O level Stats 4040
« Reply #17 on: October 13, 2009, 11:52:47 am »
yea u r rite...

lets just hope that no comments appear in paper 2...

when we have to draw the trend line, the line must pass through most of the points and remaining should be either above or below the trend line...thats how i was taught to draw to the trend line and most of the time my answers are correct by this method...  ;D
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Offline slvri

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Re: O level Stats 4040
« Reply #18 on: October 13, 2009, 04:11:19 pm »
i knw........im gonna get no marks for comments as well........im gonna get a 0 in q2 :-[.......as well as some marks cut in maybe q4.........i didnt do q8 since it was too damn hard...q9 also had a tricky comment as well as q10........
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Offline DrEvil

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Re: O level Stats 4040
« Reply #19 on: October 13, 2009, 04:58:21 pm »
i also got question 4's (iii) part wrong... it was damn confusing yaar..!!!
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Offline syntacus

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Re: O level Stats 4040
« Reply #20 on: October 13, 2009, 05:31:49 pm »
Was that the probability one? ans to 1 was 4 and second 1,2,3,4 i think... I think I nailed that one actually I understood it. I don't remember what I wrote though lol... but I did figure the question out. I messed up on the section B probability question.. the part B :( The moving averages one had like 4 marks worth of comment questions so I left it and attempted the probability one instead heh.
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Offline slvri

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Re: O level Stats 4040
« Reply #21 on: October 13, 2009, 05:33:32 pm »
Quote from: syntacus on October 13, 2009, 05:31:49 pm
Was that the probability one? ans to 1 was 4 and second 1,2,3,4 i think... I think I nailed that one actually I understood it. I don't remember what I wrote though lol... but I did figure the question out. I messed up on the section B probability question.. the part B :( The moving averages one had like 4 marks worth of comment questions so I left it and attempted the probability one instead heh.
moving averages? wasnt it semi averages?
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Offline syntacus

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Re: O level Stats 4040
« Reply #22 on: October 14, 2009, 04:30:09 am »
Yeah the semi averages one, my bad.
Anyway yar, anyone have a good paper on class limits/boundaries? I still don't understand how the board wants us to learn them.... they give weird questions
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Offline DrEvil

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Re: O level Stats 4040
« Reply #23 on: October 14, 2009, 05:19:14 am »
u shud learn the basics from the maths book...its pretty much clear in D4...
« Last Edit: October 17, 2009, 04:09:40 pm by DrEvil »
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Offline syntacus

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Re: O level Stats 4040
« Reply #24 on: October 14, 2009, 07:12:38 am »
D4 say? In the ogive chapter? Which chapter specifically?
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Offline DrEvil

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Re: O level Stats 4040
« Reply #25 on: October 14, 2009, 08:03:14 am »
i think its the first chapter though i am nt sure...but one thing that i am sure abt it is that the class boundaries topic is in one of the maths D3 or D4...u can search the chapters on statistics....  ::)
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Offline DrEvil

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Re: O level Stats 4040
« Reply #26 on: October 14, 2009, 11:31:04 am »
can any of u plz solve the Question#9 of 2005/2???

i am damn confused abt this question...!!! :'(

 plz help urgently....!! :(
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Offline slvri

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Re: O level Stats 4040
« Reply #27 on: October 15, 2009, 05:38:59 pm »
ohhhhhhh damn......my stats paper 2 was totally screwed........i can kiss an A goodbye :-[
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Offline syntacus

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Re: O level Stats 4040
« Reply #28 on: October 16, 2009, 10:20:59 am »
hmm... sorry to hear that. Mine went well..I'm definitely hoping for an A.
Paper 2 was better for me than paper 1...i found it to be easier.
Expectation and index number and the moving averages question was easy, the scaling one i probably messed up though ;(
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Offline slvri

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Re: O level Stats 4040
« Reply #29 on: October 16, 2009, 12:01:54 pm »
q3 was hard.........i didnt do q7(the scaling one)........expectation was actually good though.........
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