OCR MEI Statistics 1 (S1)

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  1. George_'s Avatar
    • Exalted Member
    • Posts: 362
    Re: OCR MEI Statistics 1 (S1)
    (Original post by sreddy17)
    ye i did that i just wrote it! haha
    Haha cool , sorry missed that !

    I had 4 minutes left, and I'd missed it out, and so I quickly wrote that down! :P
  2. nicknickmac's Avatar
    • Junior Member
    • Location: Wadhurst
    • Posts: 33
    Re: OCR MEI Statistics 1 (S1)
    (Original post by sreddy17)
    first question did ppl just do 30/50 x 29/49 x 28/48
    yeahh x
  3. George_'s Avatar
    • Exalted Member
    • Posts: 362
    Re: OCR MEI Statistics 1 (S1)
    (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?
    I guessed by doing 25/80 * 2.5million, then for some reason I multiplied by 1000 to get 781 million pounds :P

    GUESSED totally.
  4. toddyvedda's Avatar
    • Junior Member
    • Posts: 27
    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
  5. alex7892's Avatar
    • Adored and Respected Member
    • Posts: 465
    Re: OCR MEI Statistics 1 (S1)
    Also what did you guys get for the two combinations question?

    480?
    then 480/3003 which cancels?
  6. louci's Avatar
    • Benevolent Member
    • Posts: 889
    Re: OCR MEI Statistics 1 (S1)
    (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?
    got the same as uuuuuuu
  7. sreddy17's Avatar
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    • Posts: 493
    Re: OCR MEI Statistics 1 (S1)
    (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?
    x 2.5 million but yeah thats what i did
  8. sreddy17's Avatar
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    • Posts: 493
    Re: OCR MEI Statistics 1 (S1)
    (Original post by alex7892)
    Also what did you guys get for the two combinations question?

    480?
    then 480/3003 which cancels?
    yes i did the combinations for the sections and then divided by the overall possibilities
  9. toddyvedda's Avatar
    • Junior Member
    • Posts: 27
    Re: OCR MEI Statistics 1 (S1)
    (Original post by alex7892)
    Also what did you guys get for the two combinations question?

    480?
    then 480/3003 which cancels?
    Oh ffs 9+6 is 15, not 14! yeah i would've got the same as you if i wasn't being so stupid
  10. nicknickmac's Avatar
    • Junior Member
    • Location: Wadhurst
    • Posts: 33
    Re: OCR MEI Statistics 1 (S1)
    (Original post by sreddy17)
    yes i did the combinations for the sections and then divided by the overall possibilities
    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
  11. sreddy17's Avatar
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    Re: OCR MEI Statistics 1 (S1)
    did ppl get 8 for expectation and something like 1.6 for variance.. cant remember exactly (for the probability distribution of the coins)
  12. nicknickmac's Avatar
    • Junior Member
    • Location: Wadhurst
    • Posts: 33
    Re: OCR MEI Statistics 1 (S1)
    (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)
    yuppo x
  13. sreddy17's Avatar
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    • Posts: 493
    Re: OCR MEI Statistics 1 (S1)
    (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
    nah, i just gave it as a decimal
  14. nicknickmac's Avatar
    • Junior Member
    • Location: Wadhurst
    • Posts: 33
    Re: OCR MEI Statistics 1 (S1)
    (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
    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
  15. alex7892's Avatar
    • Adored and Respected Member
    • Posts: 465
    Re: OCR MEI Statistics 1 (S1)
    Yes it was 840 just forgot the figures. Seem quite happy about the exam just made a mistake with the standard deviation and mean, must of been calculator issue. Would I still get follow through marks for this and the outlier question?
  16. sreddy17's Avatar
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    Re: OCR MEI Statistics 1 (S1)
    how did peoples histogram look?
  17. louci's Avatar
    • Benevolent Member
    • Posts: 889
    Re: OCR MEI Statistics 1 (S1)
    (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 was like ...............!!!!!!!!!!!!!!!!!

    omg i though i put 14 and got it wrong omg !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!

    oh gosh i can breath again !!!!!

    so it was 14 yeah?
  18. ineedtorevise127's Avatar
    • Benevolent Member
    • Posts: 744
    Re: OCR MEI Statistics 1 (S1)
    who found like 400 and something for STANDARD DEVIATION
    dunno why I flopped
    Also was one permuatation 14C6 or something like that ?
  19. louci's Avatar
    • Benevolent Member
    • Posts: 889
    Re: OCR MEI Statistics 1 (S1)
    (Original post by sreddy17)
    how did peoples histogram look?
    slighltly negative skew
  20. dayofs's Avatar
    • Junior Member
    • Posts: 59
    Re: OCR MEI Statistics 1 (S1)
    (Original post by sreddy17)
    prob that first person to use the browser is the third one
    Can you show me how do you do it please? I cant remember.
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