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    (Original post by Mango88)
    How did everyone find it??
    Very similar to all the past papers - not too bad at all. Absolutely dreading c4 on Friday though

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    (Original post by 98matt)
    Very similar to all the past papers - not too bad at all. Absolutely dreading c4 on Friday though

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    What value did you get for m at the end?
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    For the median? Something like 1.6.... something

    Or for P(over 1.5hrs hmwk) = 5/8

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    (Original post by Mango88)
    What value did you get for m at the end?
    Could someone explain the expected profit one?
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    (Original post by Maths is Life)
    Could someone explain the expected profit one?
    I just couldnt do it Ended up guessing
    -£5
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    (Original post by Maths is Life)
    Could someone explain the expected profit one?
    That really confused me!!
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    How did everyone do the question about the guy getting the shots and spending £5, did you use the tables? Because I couldn't :/
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    (Original post by Maths is Life)
    Could someone explain the expected profit one?
    Yes!!! This really got me too, I skipped it and went back at the end. This is what I did (not sure if it's correct)

    Using the probabilities calculated in parts i) and ii) I did:

    {Amount of money for X=2 (I think £10) × P(X=2)} + {Amount of money for X>2 (I think £25) × P(X>2)}

    So that would give you the average profit made, I believe I got £3.39 ish. But since it cost £5 to play, the profit is £5.00 - £3.39 = £1.61

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    I got £1.70 or something like that, but I've completely forgot how I got it 😂😂😂
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    Overall I found it a very nice paper
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    Does anyone have an unofficial mark scheme?
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    (Original post by FusionNetworks)
    I just couldnt do it Ended up guessing
    -£5
    I think it was -5 times P(X<2) + 5 times P(X=2) + 20 times P(X>2).
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    So was the jack committee one ok with everyone?
    Im probably wrong. 1c1x7c2/8c3????
    Since jack is only one person😃?
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    (Original post by Maths is Life)
    So was the jack committee one ok with everyone?
    Im probably wrong. 1c1x7c2/8c3????
    Since jack is only one person😃?
    I sort of had an idea that it would be 3/8 anyway because it's just him, but I did do the method you did and got 3/8 anyway.
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    (Original post by Maths is Life)
    So was the jack committee one ok with everyone?
    Im probably wrong. 1c1x7c2/8c3????
    Since jack is only one person😃?
    Looks right to me! I did 8C1/8C3 but im pretty sure thats wrong lol
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    Any unofficial recommended/suggested answer for expected profit?
    I tried using Y=aX+b but that has been used in a previous question.
    I worked out that he is expected to hit once tho😂😂
    Please explain!
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    Also for that girl whose calculator was not-so scientific would you simplify the ncr formula book equation?
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    (Original post by Mango88)
    What value did you get for m at the end?
    I think 1.56??? I dont think thats right but al long its something in the range and 3SF...
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    was E(X) (CRV -PDF)
    19/6 k
    And then times half.....
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    Am I the only person who thought the paper was quite difficult?
 
 
 
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