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    (Original post by ihatehannah)
    gradient of line of best fit 133.3 ?
    I got like 0.8
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    (Original post by Hadleigh2k11)
    I got it, you had to square EVERY number in the set of numbers individually, and add them up for total of one of them and sub into equation with n as 12
    what did u write for the describe the seasonal variations without mentioning calculations.
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    (Original post by Hadleigh2k11)
    I got it, you had to square EVERY number in the set of numbers individually, and add them up for total of one of them and sub into equation with n as 12
    OOHHH that makes much more sense. Lol oops. Will I still get method marks though?
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    (Original post by ihatehannah)
    weight as variable, the one u had to circle was cluster
    (Original post by Hadleigh2k11)
    I got babies height and its secondary because it would have already been recorded at birth?
    I put the material of the seat. I circled random argh got that wrong. The next one i put secondary
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    (Original post by ihatehannah)
    what did u write for the describe the seasonal variations without mentioning calculations.
    That quarter 3 had the most seasonal variation and quarter 4 had the least
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    (Original post by everythinggreen)
    that standard deviation question got me so confused. :confused::confused: I substituted everything into the equation like normal but i didnt get 0.4. I literally tried everything! The closest i got was 0.7
    same !! Omg !!
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    (Original post by nisha.sri)
    I put the material of the seat. I circled random argh got that wrong. The next one i put secondary
    it was primary and material is probably wrong as it said what variable they need to obtain from the babies.
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    (Original post by ihatehannah)
    what did u write for the describe the seasonal variations without mentioning calculations.
    There was a positive seasonal variation for quarter 2 and 3 whilst a negative seasonal variation for quarters 1 and 4
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    (Original post by EverythingGreen)
    OOHHH that makes much more sense. Lol oops. Will I still get method marks though?
    You get one for choosing the right formula and you only got one of the values wrong but it took me a good 5 minutes to actually do the question, went on to extra paper, really tricky question
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    (Original post by Hadleigh2k11)
    That quarter 3 had the most seasonal variation and quarter 4 had the least
    i wrote that q3 was above trend line, q4 was below the trend line, idk if i wud get the mark.
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    (Original post by ihatehannah)
    it was primary and material is probably wrong as it said what variable they need to obtain from the babies.
    Oh ok ... I swear it's secondary
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    (Original post by nisha.sri)
    Oh ok ... I swear it's secondary
    defo primary as the company itself is conducting the survey
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    (Original post by nisha.sri)
    I put the material of the seat. I circled random argh got that wrong. The next one i put secondary
    I put primary :argh:
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    (Original post by ihatehannah)
    defo primary as the company itself is conducting the survey
    How though ? Because the hospital already has data and the researchers or whatever are going to take the data from them
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    (Original post by EverythingGreen)
    I put primary :argh:
    I think i got that one wrong Maybe your right
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    (Original post by Hadleigh2k11)
    You get one for choosing the right formula and you only got one of the values wrong but it took me a good 5 minutes to actually do the question, went on to extra paper, really tricky question
    Well done you
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    Anyone have a link to the unofficial markscheme?
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    (Original post by nisha.sri)
    I think i got that one wrong Maybe your right
    it said the company wanted to do a survey and it also said the company will be investigating and collecting the data themselves, no other company will be taking the data, so its primary.
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    the histogram question where you had to estimate the time taken for the 21 runners, did you get 106 minutes?
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    (Original post by ihatehannah)
    the histogram question where you had to estimate the time taken for the 21 runners, did you get 106 minutes?
    How did you work it out?
 
 
 
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