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Edexcel (IAL): Statistics 1, WST01 (27th January 2016) Watch

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    (Original post by physicsmaths)
    I think you swithced the possibility. Exactly two get a merit.


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    Exactly two get a merit, so 0.25 * 0.25, I've got that. So the next candidate needs to get a *pass*. That is, he needs to be in the top 75%, but he can't be in the top 25% because that's a merit. So he has to be in the middle 50%. Does that make any sense?
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    Anyone remembers exact question b? or any values I only remember P(X>28) the other was around 50~ something
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    (Original post by Zacken)
    Exactly two get a merit, so 0.25 * 0.25, I've got that. So the next candidate needs to get a *pass*. That is, he needs to be in the top 75%, but he can't be in the top 25% because that's a merit. So he has to be in the middle 50%. Does that make any sense?
    Ah I get you. Well done I didn't spot that, you have got it right!


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    (Original post by Hamzah249)
    Anyone remembers exact question b? or any values I only remember P(X>28) the other was around 50~ something
    28 and 50.
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    (Original post by physicsmaths)
    Ah I get you. Well done I didn't spot that, you have got it right!


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    You gave me a scare there, phew!
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    (Original post by Zacken)
    You gave me a scare there, phew!
    I will get back to my BMO2 paper 🌝😂


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    (Original post by Zacken)
    28 and 50.


    And do you remember mean & sd?
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    (Original post by physicsmaths)
    I will get back to my BMO2 paper 🌝😂


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    And I to M2. Good luck for tomorrow! What are you aiming for?
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    (Original post by Zacken)
    And I to M2. Good luck for tomorrow! What are you aiming for?
    Bottom of leaderboard/Distinction
    (top 30-35 ish) So i need around 1-205/40 which will put me in top 35 ish.


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    (Original post by Hamzah249)


    And do you remember mean & sd?
    Mean and SD? It's in my post, isn't it?
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    (Original post by physicsmaths)
    Bottom of leaderboard/Distinction
    (top 30-35 ish) So i need around 1-205/40 which will put me in top 35 ish.
    Damn son you better get that otherwise you're a wasteman, hopefully lots of geometry.
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    (Original post by Zacken)
    Mean and SD? It's in my post, isn't it?
    Yeah that's the one for part c with 2 equations im asking the one from a and b if you remember which were given to us
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    (Original post by Zacken)
    Damn son you better get that otherwise you're a wasteman, hopefully lots of geometry.
    Always 1 geometry no less no more. Only 4 question remember.
    Geometry Combinatorics Number theory and one weird one(algebra function inequalities).


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    (Original post by Zacken)
    Damn son you better get that otherwise you're a wasteman, hopefully lots of geometry.
    True dat. U better 100ums M2 otherwise u da wasteman


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    (Original post by Hamzah249)
    Yeah that's the one for part c with 2 equations im asking the one from a and b if you remember which were given to us
    Ohhh, mean was 22 and standard deviation was... 10.
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    (Original post by physicsmaths)
    Always 1 geometry no less no more. Only 4 question remember.
    Geometry Combinatorics Number theory and one weird one(algebra function inequalities).
    no excuses wreck it fam

    (Original post by physicsmaths)
    True dat. U better 100ums M2 otherwise u da wasteman


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    but moments m8
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    (Original post by Zacken)
    no excuses wreck it fam



    but moments m8
    Lol moments, just perp distance and ur done. Don't resolve he force resolve he distance n ur done.
    Energy formula
    Tot enrgy b4+wd=enrgy after +wd by fric forces
    That got me 100ums tbh. Literally. My paper was trivial though 2014 M2.


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    (Original post by physicsmaths)
    Lol moments, just perp distance and ur done. Don't resolve he force resolve he distance n ur done.
    Energy formula
    Tot enrgy b4+wd=enrgy after +wd by fric forces
    That got me 100ums tbh. Literally. My paper was trivial though 2014 M2.


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    Still full raw - quite an achievement!
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    (Original post by aymanzayedmannan)
    Still full raw - quite an achievement!
    Na full raw in M1 was my achievement that year since it was like 70 for 100.


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    (Original post by Zacken)
    Disclaimer: If you disagree with any of my answers, I'm probably wrong and you're probably right

    6(a) mean = 836, standard dev = 79.9
    (b) postiive skew, mean > median.
    (c) no change
    (d) standard dev decrease.
    For 6d), I don't understand how S.D decrease while there was no change in the mean value. I must be missing something...
 
 
 
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