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# gcse statistics 27th June, how did you find it

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1. (Original post by ihatehannah)
gradient of line of best fit 133.3 ?
I got like 0.8
2. (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.
3. (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?
4. (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
5. (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
6. (Original post by everythinggreen)
that standard deviation question got me so 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 !!
7. (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.
8. (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
9. (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
10. (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.
11. (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
12. (Original post by nisha.sri)
Oh ok ... I swear it's secondary
defo primary as the company itself is conducting the survey
13. (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
14. (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
15. (Original post by EverythingGreen)
I put primary
I think i got that one wrong Maybe your right
16. (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
17. Anyone have a link to the unofficial markscheme?
18. (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.
19. the histogram question where you had to estimate the time taken for the 21 runners, did you get 106 minutes?
20. (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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Updated: June 27, 2016
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