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boards.ie The lotto - are the odds of getting a sequence of numbers the same as ..  
14:33 26-Jun-08   [Replies: 29, Views: 600]    By: dublindude
Hello I understand the concept of probability, and that the chance of getting 1, 7, 8, 15, 21, 22 is the same as getting 1, 2, 3, 4, 5, 6. But because there is a relationship between a se...
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boards.ie Is this right?  
12:53 26-Jun-08   [Replies: 21, Views: 315]    By: cormie
Would anyone be able to tell me if the calculations of "D" here: http://www.vantasks.ie/index.php?page=10 [http://www.vantasks.ie/index.php?page=10]> are correct, the cubic feet/metres p...
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boards.ie graphics calculator (TI-83 or TI-84),  
16:46 24-Jun-08   [Replies: 0, Views: 82]    By: MissThing
I need a graphics calculator specifically Ti-83 or Ti-84, they're a fortune new, any ideas where I can get one second hand? Thanks MT ...
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boards.ie Applied Maths in 4th Year.  
14:05 23-Jun-08   [Replies: 6, Views: 192]    By: Unnamed
I'm definitely thinking of doing Applied Maths for Leaving Cert, as I have an interest in maths and physics, and I'm doing physics for the Leaving Cert. I just finished my JC and I'm going into 4t...
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boards.ie Doing leaving cert higher maths as evening course  
22:15 19-Jun-08   [Replies: 1, Views: 206]    By: mattym
I did my leaving cert 12 years ago and did ordinary level maths which i have always regreted doing. I got an A2 and always wondered if i would have been able for honours. My question is firstly, d...
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boards.ie Square root modulo a prime  
19:43 16-Jun-08   [Replies: 4, Views: 255]    By: dublindude
Hello I hope someone can help me with this. I have the following equation - y^2 mod 269 = x^3 + 3*x + 5 mod 269 Let's say x is 64. So - y^2 mod 269 = 64^3 + 3*64 + 5 mod 26...
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boards.ie Spss about data management  
17:33 16-Jun-08   [Replies: 1, Views: 103]    By: Unnamed
Hi i have same date like this; 1 .... ..... 2 .... ..... 3 -26 -28 4 36 -53 5 -40 -46 6 ... ..... 7 56 -64 8 -31 -29 ı want to change this date like this 1 ..... -28 2 ...
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boards.ie Finite field subtraction  
17:02 15-Jun-08   [Replies: 3, Views: 137]    By: dublindude
Hello I hope someone can help me with this. Let's imagine I want to perform the following subtraction operation - (7, 1) - (2, 3) Both are geometric points on an elliptic curve. ...
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boards.ie Statisticly speaking  
01:18 15-Jun-08   [Replies: 5, Views: 208]    By: Victor
Boardsies are about right http://www.boards.ie/vbulletin/showt...p?t=2055312508 [http://www.boards.ie/vbulletin/showthread.php?t=2055312508]> Boardsies Yes 46.36% No 53.64% Actual...
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boards.ie Quick Spss Question  
13:29 10-Jun-08   [Replies: 7, Views: 258]    By: billstraighten
Hi all I have a problem, I have 6 variables, Eg. A B C AX BX CX which are to be answered to, in ranking order of 1,2,3 However its possible that more than one can be rank...
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boards.ie Probability Question  
00:58 6-Jun-08   [Replies: 4, Views: 247]    By: Lands Leaving
Can anyone tell me how to figure this out (I'm awful at maths unfortunately) If there are 8 football matches and each one can result in a win for either team or a draw how many possible combin...
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boards.ie Area of cylinder by integration methods  
20:26 5-Jun-08   [Replies: 9, Views: 299]    By: ian.f
Doing my LC tomorrow and would love a bit of help I can get area of circle by integration and I can also get volume of circle and cone by integration. Now I just need volume of cyclinder... C...
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boards.ie Circle with infinite circumferance  
15:52 4-Jun-08   [Replies: 32, Views: 978]    By: raah!
I was wondering if anyone here knew what this was all about. At first it makes sense, but then when you think about it it stops working heh, it's that "a circle with an infinte circumferance...
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boards.ie Reliability % calculation.  
11:10 2-Jun-08   [Replies: 5, Views: 257]    By: jacQues
I have a system in place for an on-line game, where price changes are shown to users. I would like to add a reliability percentage to the score. But I'm not 100% certain about the calculations i...
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boards.ie Quick probability Q  
18:40 26-May-08   [Replies: 12, Views: 322]    By: Helpmemaths
Hey, ive an exam on wed in probability and just wondering could anyone verify the answer to this question?If you are dealt 2 cards from a deck of cards. What are the odds that at least 1 card is a...
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boards.ie excuse my stupidity  
11:57 23-May-08   [Replies: 7, Views: 291]    By: eurotrotter
hey guys its been ages since iv done maths. but i need to know where the 'mod' key is on the scientific calculator i need to calculate: 5^6 mod23 just an example of what i need to d...
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boards.ie Please help me! Maths in Medicine  
05:07 22-May-08   [Replies: 2, Views: 177]    By: geniusthinker
Hi everyone, I'm writing an essay about the relationship between maths and medicine. Basically I'm going to 1) Introduce the relationship between maths and medicine. 2) Use maths logical...
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boards.ie Linear Algebra help please?  
13:35 21-May-08   [Replies: 3, Views: 194]    By: qwertykeyboards
ive 2 questions woul be great help if u could help me with them. first one is attached. 2nd one is this: Show that the two matrices A(its a 2row x 3 column matrix) = (2 -3 -9, 4 -2 2) an...
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boards.ie Help with function  
12:27 21-May-08   [Replies: 2, Views: 97]    By: Unnamed
The equation x^3y^2 + lny^4 = 8 determines an implicit function : x - y(x). Find the derivative, y'(x), of this function at the point (2; 1). First i should find a derivative which is (3x^2)(2y)+4...
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boards.ie Applied Math, Quick Q  
09:52 21-May-08   [Replies: 9, Views: 250]    By: Unnamed
The volume, in litres, of a pollutant in a tank is given as a function of time in hours by the relation V(t) = 1000 + 250t – 50t2 Find the initial volume, as well as the maximum volume reach...
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boards.ie Surface of Revolution  
12:23 20-May-08   [Replies: 5, Views: 145]    By: mathew
Studying for a Maths exam thats on tomorrow and I just cant get this surface of revolution question. Theres a strong chance Im missing something terribly obvious here. Presumably if part a is do...
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boards.ie Prob puzzle  
11:09 20-May-08   [Replies: 4, Views: 201]    By: The_Daddy_H
He is a pertinent puzzle. Suppose the pass rate at a driving test centre is 50%, assuming people don't get any better at driving, what is the likelihood of passing your test first time? What i...
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boards.ie Confidence intervals question  
16:57 19-May-08   [Replies: 2, Views: 122]    By: Nephew
Hey guys. I've an exam coming up soon in financial maths and I am trying to prepare by doing a few practice questions, but unfortunately I am dire at maths. I would be forever grateful if anyone c...
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boards.ie Differentiation Q?  
14:35 19-May-08   [Replies: 3, Views: 176]    By: Unnamed
Do I use qoutent rule for this x^2+8100/400x? My anwser is (2x)(400x)-(x^2+8100)(x)/400x^2 is it correct? ...
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boards.ie A few theory questions  
02:24 19-May-08   [Replies: 3, Views: 169]    By: Unnamed
Just need help with a few of these questions, would really appreciate it, but consider it a challenge to yourself 1. When would you use the median rather than the mean as a measure of central...
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