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TSR Movie Madness. Vote and debate in all of the group finals from now to Saturday evening! 15-07-2014
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    (Original post by Deshi)
    Does this make sense? My notes are contradicting each other and it is pissing me off......

    P(Not A n B) = P(B) - P(A n B) ????????

    The 'Not A' is basically the compliment of A, I just don't know how to do an A with a line on top

    I am bare confused.
    That does make sense.

    If you're ever confused, consider two dice.

    Let A be 'roll a 3 on dice 1' with probability 1/6, ao NOT A = 5/6.

    Let B be 'roll an even on dice 2) with prob 1/2.

    Then P(NOT A n B) = 5/6*1/2 = 5/12.

    P(B)-P(AnB) = 1/2 - 1/2*1/6 = 5/12.

    [for completeness, let event A have probability a (so NOT A has prob (1-a)) and event B have probability b. Then you can show LHS = RHS]
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    Ugh, equations
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    (Original post by cloop)
    Ugh, equations
    Ugh, Portuguese.
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    (Original post by marcusmerehay)
    That does make sense.

    If you're ever confused, consider two dice.

    Let A be 'roll a 3 on dice 1' with probability 1/6, ao NOT A = 5/6.

    Let B be 'roll an even on dice 2) with prob 1/2.

    Then P(NOT A n B) = 5/6*1/2 = 5/12.

    P(B)-P(AnB) = 1/2 - 1/2*1/6 = 5/12.

    [for completeness, let event A have probability a (so NOT A has prob (1-a)) and event B have probability b. Then you can show LHS = RHS]
    Cheers for that mate :yy:

    I'll rep you when I can, doesn't let me atm as I must've repped you recently :p:
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    (Original post by marcusmerehay)
    Ugh, Portuguese.
    Leave the Portuguese alone (Unless it's Portugal Portuguese).
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    (Original post by marcusmerehay)
    Ugh, Portuguese.
    Nando's
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    Marcus Merehay (why that, btw?) I wasn't speaking Portuguese you silly sosij. But I can start, if you want? <3
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    (Original post by cloop)
    Marcus Merehay (why that, btw?) I wasn't speaking Portuguese you silly sosij. But I can start, if you want? <3
    Merehay Lane is the name of the road I live on at home. Dunno, just sort of fits.

    You can talk to me however you like, behbeh. :heart:
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    His real surname is too ****ing surreal, as I've told him on multiple occasions.
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    I'm gonna have to visit the place eventually, out of curiosity. :smug:
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    Marcus, what IS your surname? As of course, I have no idea.

    ;-)

    p.s haha you're such a creepy creeperson, I might have to set Ish on you
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    I thought you meant Brazil
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    (Original post by cloop)
    Marcus, what IS your surname? As of course, I have no idea.

    ;-)

    p.s haha you're such a creepy creeperson, I might have to set Ish on you
    Please don't, she'd destroy me. :sad:
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    (Original post by Colonel.)
    His real surname is too ****ing surreal, as I've told him on multiple occasions.
    It's Smith, isn't it?
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    Also, Marcus, you are such an advertisement for who you are and where you live haha
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    (Original post by Colonel.)
    I thought you meant Brazil
    I'm confused
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    (Original post by cloop)
    I'm confused
    I thought Marcus meant Brazil, not what his link led to.
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    (Original post by cloop)
    Also, Marcus, you are such an advertisement for who you are and where you live haha
    How so? :smug:
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    (Original post by marcusmerehay)
    How so? :smug:
    Your road, and a link to your surname! Hehe
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    (Original post by cloop)
    Your road, and a link to your surname! Hehe
    What can I say, I just put myself out there.
Updated: December 25, 2012
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