I'm so bad at combinatorics and probabilities, never felt comfortable doing those problems.
Wow you're all nerds
[SP]I'm actually jealous and failed math several times[/SP]
[QUOTE=The bird Man;49774542]Wow you're all nerds
[SP]I'm actually jealous and failed math several times[/SP][/QUOTE]
believe in yourself, open your third eye, and the knowledge from the singularity will teach you math
And for B I think you can just add together the different possibilities where two alarms ring
so P=(0.8*0.9*0.05)+(0.8*0.1*0.95)+(0.2*0.9*0.95)= 0,283
You could also use complimentary event there (1 - all possibilities with more or less than 2 alarms) but it's a bit longer
P = 1 - ( (0.8*0.1*0.05) + (0.2*0.9*0.05) + (0.2*0.1*0.95) + (0.2*0.1*0.05) + (0.8*0.9*0.95 )
PS: I hate probabilities and statistics too
[QUOTE=Hattiwatti;49774632]
PS: I hate probabilities and statistics too[/QUOTE]
You take that back! Probability is :ok:
Your math checks out btw.
[QUOTE=Yozora_Mikazu;49774596]believe in yourself, open your third eye, and the knowledge from the singularity will teach you math[/QUOTE]
that or just beat yourself with a mathbook for some time until something sticks, and by beat i mean metaphorically beat yourself by doing tons of problems
sure math can be hard, but the biggest issue most people have is they haven't practiced it, and its really hard to practice if you don't have day to day coursework in it
[editline]22nd February 2016[/editline]
except probability and statistics, i never understand anything about that math, it all seems arbitrary
I am having problems with probabilities too, this friday I have second final because I failed first one.
But I like probability, especially matrix/vector stuff.
Just that theory, what the fuck Bayes, why did u made my life so hard
can somebody teach me calc2 before my exam on wednesday
I'm tutoring my universities big probability course this semester so feel free to ask questions.
Don't forget that a random variable is neither random nor variable.
(Its a deterministic function mapping an outcome to some value)
[QUOTE=Fourier;49793348]I am having problems with probabilities too, this friday I have second final because I failed first one.
But I like probability, especially matrix/vector stuff.
Just that theory, what the fuck Bayes, why did u made my life so hard[/QUOTE]
This tutorial bellow helped me a lot while I was studying probability.
It's very simple, though; so don't expect a question this simple on an exam. This tutorial is merely a way for you to get the idea of the theorem. If you want to be able to solve the difficult question (which is what will probably be on the test, if your college/school/university is like mine), you have to practice and solve a lot of exercises. Then, you'll be good at it.
I wish you the best of luck with your exam! :smile:
[video]https://youtu.be/E4rlJ82CUZI[/video]
[video]https://youtu.be/zh1E8cGoV7k[/video]
[video]https://youtu.be/j2tNxIaGpR4[/video]
I realize i totaly suck at tautology. Does anyone have some interesting videos/articles related to this topic?
That's a bit broad. In what sense do you suck at tautology?
[QUOTE=JohnnyMo1;49822255]That's a bit broad. In what sense do you suck at tautology?[/QUOTE]
In Quantifiers, both Universal and Existential
[QUOTE=prop_physic;49822276]In Quantifiers, both Universal and Existential[/QUOTE]
I still don't understand what you mean. It's like if I said I suck at diffeomorphisms. What do you mean? Is there some problem you're having trouble with? Some specific concept you don't understand?
[QUOTE=JohnnyMo1;49822998]I still don't understand what you mean. It's like if I said I suck at diffeomorphisms. What do you mean? Is there some problem you're having trouble with? Some specific concept you don't understand?[/QUOTE]
I can't understand when quantifiers are true or false
[QUOTE=prop_physic;49822276]In Quantifiers, both Universal and Existential[/QUOTE]Can you give us an example of a question that you're having problems solving? I understand the basics of quantifiers, but I haven't explored the more complex problems. I may be able to help, though. :smile: By the way, this video may help, but I'm not sure, since it's very basic. This Youtuber is quite amazing; I have often relied on his videos to understand how things work! :smile: Keep in mind that this is very basic, so you might not benefit from it if you're looking for something more complex.
I hope this helps. :smile:
[video]https://youtu.be/XGeIynFIUHs[/video]
[QUOTE=Reflex F.N.;49824138]Can you give us an example of a question that you're having problems solving? I understand the basics of quantifiers, but I haven't explored the more complex problems. I may be able to help, though. :smile: By the way, this video may help, but I'm not sure, since it's very basic. This Youtuber is quite amazing; I have often relied on his videos to understand how things work! :smile: Keep in mind that this is very basic, so you might not benefit from it if you're looking for something more complex.
I hope this helps. :smile:
[video]https://youtu.be/XGeIynFIUHs[/video][/QUOTE]
I actualy wanted some basic understanding of quantifiers, thanks!
[QUOTE=prop_physic;49824188]I actualy wanted some basic understanding of quantifiers, thanks![/QUOTE]
Oh, well then I hope it helps! :smile:
Good luck!
Is it true that every norm is convex function?
This means there exist unique minimum when optimizing in one direction, yes?
There was just an ad for some politician on TV where she said something along the lines of "Imagine having to pay 20% more for a cup of coffee just because you're a woman. Why does <opponent> not think that it's a problem that women are paid 20% less for the same work?"
Maybe they're just willing to pay more for someone who understands that "paying 20% more" and "being paid 20% less" are not equivalent.
[QUOTE=Reflex F.N.;49803317]This tutorial bellow helped me a lot while I was studying probability.
It's very simple, though; so don't expect a question this simple on an exam. This tutorial is merely a way for you to get the idea of the theorem. If you want to be able to solve the difficult question (which is what will probably be on the test, if your college/school/university is like mine), you have to practice and solve a lot of exercises. Then, you'll be good at it.
I wish you the best of luck with your exam! :smile:
[video]https://youtu.be/E4rlJ82CUZI[/video]
[video]https://youtu.be/zh1E8cGoV7k[/video]
[video]https://youtu.be/j2tNxIaGpR4[/video][/QUOTE]
Thanks, saw this only now D:
I'm taking a Theory Of Algorithms course and it seems to be full of math (most Discrete Mathematics; which is my favorite). It also involves a lot of coding, which is one of my favorite activities, so it's awesome. I've only taken two lectures, so far, so I can't say for sure whether or not it'll continue to be this awesome, but it seems awesome, so far.
Has anyone else here taken or is taking an algorithms course?
I kind of wish I took an algorithms/scientific programming course because I would be rolling in money right now (I live in a great area for things like data science) but I kind of don't because I find coding boring as hell most of the time.
I just hate money.
[QUOTE=Reflex F.N.;49846067]I'm taking a Theory Of Algorithms course and it seems to be full of math (most Discrete Mathematics; which is my favorite). It also involves a lot of coding, which is one of my favorite activities, so it's awesome. I've only taken two lectures, so far, so I can't say for sure whether or not it'll continue to be this awesome, but it seems awesome, so far.
Has anyone else here taken or is taking an algorithms course?[/QUOTE]
I took a course called "Algorithms and Data Structures" but I don't remember much of the Algorithm side of things. For me its the data structure content that I'll never forget - knowing when to use a vector, list, tree etc is incredibly useful.
[QUOTE=JohnnyMo1;49847386]I kind of wish I took an algorithms/scientific programming course because I would be rolling in money right now (I live in a great area for things like data science) but I kind of don't because I find coding boring as hell most of the time.
I just hate money.[/QUOTE]
You hate money or working just to get money?
[QUOTE=Fourier;49847810]You hate money or working just to get money?[/QUOTE]
Well I keep studying things I enjoy instead of lucrative things so I must hate it :v:
[editline]1st March 2016[/editline]
[QUOTE=Wunce;49847490]I took a course called "Algorithms and Data Structures" but I don't remember much of the Algorithm side of things. For me its the data structure content that I'll never forget - knowing when to use a vector, list, tree etc is incredibly useful.[/QUOTE]
Speaking of algorithms and data structures, here's a page where you can get a free open-source textbook written by a professor in the CS department at my undergrad institution!
[url]https://people.cs.vt.edu/shaffer/Book/[/url]
I don't know enough about the topic to really critique but I've browsed through it and it seems nice
Don't think I wanna end up in "the industry" either, I imagine you have to work in big teams and make deadlines and adhere to a plan. I'll probably try to do a PhD so I can work individually and in a more "creative" way.
[Editline] 2th March[/Editline]
On the other hand $$$$$$$$$$$$
[QUOTE=Number-41;49850639]Don't think I wanna end up in "the industry" either, I imagine you have to work in big teams and make deadlines and adhere to a plan. I'll probably try to do a PhD so I can work individually and in a more "creative" way.
[Editline] 2th March[/Editline]
On the other hand $$$$$$$$$$$$[/QUOTE]
The industry $$$$$$ are pretty damn good for math/physics PhDs. Quantitative finance is a big one for math PhDs and that's absurdly lucrative. And academia isn't always all it's cracked up to be, especially here in the US. Everything apart from tenured professors work like slaves and the odds of actually becoming a tenured professor these days are practically nil. It works like a cartel.
[editline]2nd March 2016[/editline]
Not that it isn't my dream to be a professor of physics though...
You can always start your own online university like khan.
But that is boring compared to lecturing to real people in front of you.
[QUOTE=JohnnyMo1;49851185]The industry $$$$$$ are pretty damn good for math/physics PhDs. Quantitative finance is a big one for math PhDs and that's absurdly lucrative. And academia isn't always all it's cracked up to be, especially here in the US. Everything apart from tenured professors work like slaves and the odds of actually becoming a tenured professor these days are practically nil. It works like a cartel.
[editline]2nd March 2016[/editline]
Not that it isn't my dream to be a professor of physics though...[/QUOTE]
What kind of physics? I had the impression you shifted more to pure maths :P
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