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    probability (simple)

    Theres 3 japanese, to have at least one you can have one, two or three. If you have 1 japanese, then 3 will be not japanese, ie 3C1*7C3. Similarly 2 japanese and 2 not japanese: 3C2*7C2 and 3 japanese and 1 not is 3C3*7C1. Add these together and divide by the total outcomes for the probability
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    probability (simple)

    Another equivalent way: 3C1*7C3 + 3C2*7C2 + 3C3*7C1 = 105 + 63 + 7 = 175 Divide by 210 to get .8333
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    3d Trig help needed urgently

    Who said 200 was the hypotenuse?
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    indep.trials

    www.boredofstudies.org/upload to upload things
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    A weird integration - or is it just me.

    You can use polynomial division, this gives (x²+1)/(x²+4) = 1 - 3/(x²+4). Then integrating that is routine. Edit: Mill beat me to it
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    2004 Graduate Statistics (Starting Salaries) Out!

    Too bad they dont have stats for BIT. The fact that most BScience students went on to further study isnt really that surprising. B Arts(Informatics) was the most surprising one for me.
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    Question Help

    Ecumenism. Look at the syllabus, its even listed under ecumenical developments.
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    little help plz

    hmmm i guess what they meant is arrange it so that they alternate?
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    little help plz

    There are 9 letters, 5 consonants and 4 vowels, the only form it can be written in so that there are no vowels together is: CVCVCVCVC So you just consider the C's and V's separately, C's can be arranged 5!/2! ways (since there are 2 N's you divide by 2!) and V's 4!/2! ways (since there are...
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    Summer School

    yup, they dont offer everything. If I dont transfer ill probably do a unit to catch up on my underloading this semester.
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    Summer School

    Take a look at this Jem: http://fmweb01.ucc.usyd.edu.au/FMPro?-db=ss_hsc_uos_streams.fp5&-lay=www&-format=/summerschool/unitslist.html&I_WebShow=Yes&A_Year_Session1=2006S&A_Level_ut=Undergraduate&-SortField=A_Faculty_ut&-SortOrder=ascending&-SortField=A_Department_ut&-SortOrder=Ascending&-find...
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    Summer School

    I think they timetable it so you pretty much have lectures/tutes straight after each other. I was looking at the timetable for 2nd year maths at summer school and it was a tuesday and thursday from 9-1, in that 9-1 there was a lecture from 9-11 and then tute from 11-1.
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    2005 cssa solution

    I posted some unofficial ones in an earlier thread. I cant remember exactly where, do a search through the recent threads on CSSA.
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    Guild elections

    I wholeheartedly support babydoll_ for this event Vote [1] babydoll_
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    Two Unit Surfing as HSC course?

    From what I heard its not actually a course, rather just makes up 20% of the already existent Sport, Lifestyle and Recreation HSC course, ie. its sort of like a module. Does anyone know anything about that?
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    What to do..? ho hum...

    What do you see yourself doing? Do you want a closely business related degree? Do you want to be a hardcore coder? Do you want to apply computing to scientific and mathematical problems? Its a wide field, it really depends on your strengths/interests.
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    Easy Statistics Question.

    I think, but am not 100% sure, that z is the normal distribution function? If you look at this table (2nd page): http://www.maths.usyd.edu.au/u/UG/JM/MATH1905/r/formulaNEW.pdf It shows the normal distribution values. You'll find that 1 - 0.025 = 0.9750 You can find 0.9750, which...
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    Trig equations question.

    dN/dt = kN DEs are in the 2 unit course :uhhuh:
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    Turkey to Qualify 4 da WORLD CUP!

    I dont think Turkey will make it. Ukraine is guaranteed 1st place, meaning they have no pressure going into the next match against Turkey, so I dont think Turkey will win that. Turkey is 2 points ahead but have played an extra game. In my opinion, the team that will come 2nd in that group will...
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    SRC Elections 2005

    Mr Phanatical, I saw you posting up your posters at Redfern on my way to the station and caught a glimpse of one your slogans, something along the lines of "If you dont vote for Quah, you're a racist". Care to explain, please?
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