OCR MEI Statistics 1 (S1)
Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.
| Announcements | Posted on | |
|---|---|---|
| Important: please read these guidelines before posting about exams on The Student Room | 28-04-2013 | |
-
Re: OCR MEI Statistics 1 (S1)Haha cool , sorry missed that !(Original post by sreddy17)
ye i did that i just wrote it! haha
I had 4 minutes left, and I'd missed it out, and so I quickly wrote that down! :P -
Re: OCR MEI Statistics 1 (S1)yeahh(Original post by sreddy17)
first question did ppl just do 30/50 x 29/49 x 28/48
x
-
Re: OCR MEI Statistics 1 (S1)I guessed by doing 25/80 * 2.5million, then for some reason I multiplied by 1000 to get 781 million pounds :P(Original post by alex7892)
What did you guys get for the revenue one for the governemt for the cars?
did you do 25/80 x 15000000 or whatever?
the x by 1000?
GUESSED totally. -
Re: OCR MEI Statistics 1 (S1)
i stupidly miswrote the X~B thing wrong, but i got the right answer i hope with all the right workings out, would i lose a mark for doing that?
Also does the histogram have to start from where your data starts, or can it start from 0?
And would i lose a mark for only labelling it 'frequency density' without a unit?
I ****ed most of the paper up anyway, but i want to know if i've got 3 more marks to scrape a B
-
Re: OCR MEI Statistics 1 (S1)got the same as uuuuuuu(Original post by alex7892)
What did you guys get for the revenue one for the governemt for the cars?
did you do 25/80 x 15000000 or whatever?
the x by 1000? -
Re: OCR MEI Statistics 1 (S1)x 2.5 million but yeah thats what i did(Original post by alex7892)
What did you guys get for the revenue one for the governemt for the cars?
did you do 25/80 x 15000000 or whatever?
the x by 1000? -
Re: OCR MEI Statistics 1 (S1)yes i did the combinations for the sections and then divided by the overall possibilities(Original post by alex7892)
Also what did you guys get for the two combinations question?
480?
then 480/3003 which cancels? -
Re: OCR MEI Statistics 1 (S1)Oh ffs 9+6 is 15, not 14! yeah i would've got the same as you if i wasn't being so stupid(Original post by alex7892)
Also what did you guys get for the two combinations question?
480?
then 480/3003 which cancels?
-
Re: OCR MEI Statistics 1 (S1)oh ****(Original post by sreddy17)
yes i did the combinations for the sections and then divided by the overall possibilities
do you think i'll drop a mark not for cancelling? also wasn't it 840 not 480? or have i screwed up loads
x
-
Re: OCR MEI Statistics 1 (S1)yuppo(Original post by sreddy17)
did ppl get 8 for expectation and something like 1.6 for variance.. cant remember exactly (for the probability distribution of the coins)
x
-
Re: OCR MEI Statistics 1 (S1)nah, i just gave it as a decimal(Original post by nicknickmac)
oh ****
do you think i'll drop a mark not for cancelling? also wasn't it 840 not 480? or have i screwed up loads
x
-
Re: OCR MEI Statistics 1 (S1)omfg i did 14 as well :/ x(Original post by toddyvedda)
Oh ffs 9+6 is 15, not 14! yeah i would've got the same as you if i wasn't being so stupid
Oh infact, it was 5 questions from section A and 9 from section B, 14 is right
x
-
Re: OCR MEI Statistics 1 (S1)omg i was like ...............!!!!!!!!!!!!!!!!!(Original post by nicknickmac)
omfg i did 14 as well :/ x
Oh infact, it was 5 questions from section A and 9 from section B, 14 is right
x
omg i though i put 14 and got it wrong omg !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!
oh gosh i can breath again !!!!!
so it was 14 yeah? -
Re: OCR MEI Statistics 1 (S1)slighltly negative skew(Original post by sreddy17)
how did peoples histogram look? -
Re: OCR MEI Statistics 1 (S1)Can you show me how do you do it please? I cant remember.(Original post by sreddy17)
prob that first person to use the browser is the third one

x