gcse statistics 27th June, how did you find it

Original post by ihatehannah

gradient of line of best fit 133.3 ?

I got like 0.8

Reply 21

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.

Reply 22

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?

Reply 23

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

Reply 24

Hadleigh2k11

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

Reply 25

Original post by everythinggreen

that standard deviation question got me so 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 !!

Reply 26

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.

Reply 27

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

Reply 28

Hadleigh2k11

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

Reply 29

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.

Reply 30

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

Reply 31

Original post by nisha.sri

Oh ok ... I swear it's secondary

defo primary as the company itself is conducting the survey

Reply 32

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:

Reply 33

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

Reply 34

Original post by EverythingGreen

I put primary :argh:

I think i got that one wrong :frown:

Maybe your right

Reply 35

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 :h:

Reply 36

Anyone have a link to the unofficial markscheme?

Reply 37