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    Exams over!!

    How did everyone find it?

    What did people estimate the Spearman's Rank of the bus line as?
    And what did you get for the very last Q in the paper?

    What sort of grade boundaries do Stats exams have?

    C4
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    I found them suprisingly easy, I think for the spearmans rank I got 0.95? Which shows theres strong correlation (i hope )

    Was the very last question the paper scissors rock one? - That was easy...

    The only thing I didn't really know was the gemetric mean which I now know, ah well

    Exams over and they went well

    Grade boundaries, I would like to know.
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    (Original post by siliviax)
    I found them suprisingly easy, I think for the spearmans rank I got 0.95? Which shows theres strong correlation (i hope )

    Was the very last question the paper scissors rock one? - That was easy...

    The only thing I didn't really know was the gemetric mean which I now know, ah well

    Exams over and they went well

    Grade boundaries, I would like to know.
    I found it dead easy too thinking about it- much easier than the practise papers I had.

    Geometric mean is the nth root of the product of n numbers.

    Eg. 10 20 30

    ^3rt of 6000

    I got that SRCC too.

    C4
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    i got 125/576 for the very last question. can someoe tell me if this is right? and btw how many marks will i lose if i rounded up the Spearmans to 0.971 when it should have been 0.970?
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    hey, i got 245/576 which is 3 x 5/12 x 7/12 x7/12
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    I think with my A coursework and exam I will get an A, well thats the hope

    Well i'm sure you all did fantastic, worth doing the extra gcse when its over

    I have my prom tommorow, what a great way to finish eh? Can't wait until the after parties! wooooo
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    (Original post by damaster275)
    hey, i got 245/576 which is 3 x 5/12 x 7/12 x7/12
    I got that too.

    C4
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    woohoo! how did u do it btw? i found out all the possibilties and then multiplied. But my friemd said u had to use binomial distribution.
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    (Original post by damaster275)
    woohoo! how did u do it btw? i found out all the possibilties and then multiplied. But my friemd said u had to use binomial distribution.
    I used binomial distribution, but I dont think it matters- its obvious that in a game of paper, scissors, rock there are 3 ways to win!

    C4
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    o ok... but will i still get full marks for the question? Or wil i lose a mark for using a different method?
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    (Original post by damaster275)
    o ok... but will i still get full marks for the question? Or wil i lose a mark for using a different method?
    I dont know. I think it would have to be a harsh marker.

    On the Spearman's Q what did you estimate the correlation as, before working it out for the car line?

    C4
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    erm that was a had one but i thin ki put 0,7 but it was a total guess
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    Yer it was hard- after plotting all the other points on the same scatter graph I couldnt make out which ones were for which line! I put 0.65 in the end.

    You dnt have any idea about grade boundaries do you?

    C4
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    nah i don't but u can go to the aqa website to look for last year's boundaries. Just go to statistics then examiner's report. O yeah what did u get for the number of people in the stadium for the comparative pie chart? Did u get 63,xxx?
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    Yes! I thought it seemed high and spent about ten minutes at the end checking it!

    The one where the width of the house is 3cm what did you get for the width of the larger one? Around 3.6? Maybe 3.67 or summit.

    C4
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    OMG, how did u get that? I thought it was 4.5 cos it cost 50% more. Damn... i knew it was too easy to be right...
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    (Original post by damaster275)
    OMG, how did u get that? I thought it was 4.5 cos it cost 50% more. Damn... i knew it was too easy to be right...
    Yer its weird..

    The diagrams were 2-dimensional.

    The larger house price was £150 000 and the smaller £100 000. It is the areas not the lengths that are in the ratio 3:2.

    I still dont know if I got the right answer though :confused:

    C4
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    o yeah silly me.. come to think of it i made alot of stupid mistakes. My teacher predicted an A* i just hope i can get it. My coursework was prety good though i think i got 37/40 so maybe i can get an A*
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    Hope you get it!

    gl

    C4
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    thanks, i hope u get ur predicted grade too. By the looks of it A* as well!
 
 
 
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Updated: June 27, 2004
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