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>>>/pol/89019860
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>>8348529
>/sci/
>knowing anything about fuision
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>/pol/ has more larping than /x/
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OH SHIT
DON'T SAVE THIS OR YOU'RE GONNA GET V&
Someone that knows probability, tell me what I'm doing wrong.
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So if we have 500 fish in the lake, and 50 are already tagged, then the probability of catching a tagged fish is 50/500.
Then catching another tagged fish is 49/499 and a third would be 48/498. So in general would it just be 50*49*48/(N)*(N-1)*(N-2)?
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Or would it be N choose 50 / 50 choose 3?
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(* is multiplication)
First of all, your answer is not between 0 and 1, it is not a probability.
We have 50 tagged (white)fishes and N-50 untagged fishes. Probability of catching a tagged fish is 50/N and not catching a tagged fish is N-50/N. In the second attempt, catching a tagged fish if we have already catched one is 49/N-1 and catching a untagged fish is N-50/N-1. And catching a tagged fish in the second run, if we haven't catched in the first attemp, is 50/N-1 and catching an untagged fish is N-51/N-1. So we should continue like that but we have an information which says we end up with only 3 tagged fishes. So this means, we see 50, 49 and 48 on numerator for tagged fishes and N-50, N-51 to the N-96 for the untagged fishes and we see N to the N-49 on the denominator. So we have something like this:
50*49*48*(N-50)*(N-51)*...*(N-96)
divided by
N*(N-1)*...*(N-49)
If we try to write this in a simpler way:
Answer: P(50,3)*P(N-50,47) / P(N,50)
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How does /sci/ perform when presenting their ideas in front of peers?
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terribly because we're all autistic
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I secretly love giving presentations, no feeling is better than getting the audience to laugh with some offhand joke or turn of phrase. I wish I could do it more often.
>>8348287
I'm an autistic mumbling mess in one-on-one conversation though, it's really weird.
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I give extremely good presentations when I have time to prepare, because I can just practice until it's like a script. Any presentation that requires me to ad lib results in me getting anxious though.
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I see many IQ threads here every day. I really wish we could have a certain way to verify the IQ’s of historical figures like Beethoven, Shakespeare, Michelangelo and Einstein. I really bet that many of the greatest geniuses of history would score under 140 points (maybe even lower than 130-135 points), and I would like to see the reaction of the Mensa people, or of people who put IQ scores above everything else.
Beethoven, for example, had problems with simple math problems, and much of his production was fruit of hundreds of drafts and corrections: he used a lot of paper, slowly modeling the structure of his music. Yet some estimates put his IQ on the house of 1651 points.
Da Vinci had difficulties with algebra, and his understanding of math was mostly related to simple concepts of geometry. His “inventions” were mostly impossible to be created, and were mostly works of the imagination. Yet the estimation of his IQ is 180.
Shakespeare never did anything out of the real of words, and his works don’t show any especial interest in mathematics or even in the scientific questions of his day. His IQ estimation? 210 points to some researchers!!!2
I don’t doubt there is a lot of truth in IQ testing, that there is a great correlation between mental capacities and the results one gets in such testing, but I doubt that many of the people considered to be the greatest examples of what humanity is capable off would achieve outstanding results. I think we would get a lot of giants scoring “only” around the house of 125-130 points.
1: http://www.iqcomparisonsite.com/cox300.aspx
2: http://www.eoht.info/page/IQ+tables
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>>8348099
Have you considered that maybe those estimates aren't reliable (or full of shit)?
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>>8348109
>Have you considered that maybe those estimates aren't reliable (or full of shit)?
I am sure of it.
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It's a meme for brainlets. I used to get mad about this too. I felt like IQ autistics "stole" my idols and belittled their work by conscripting true genius into this pseudo-scientific smegmafest. Then I realized that I was the fool for even wasting my anger on these people.
Anonymous
Why were scientists predicting global cooling in the 1970s? 2016-09-15 20:02:45 Post No.8347997
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Why were scientists predicting global cooling in the 1970s? 2016-09-15 20:02:45 Post No.8347997
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Why were scientists predicting global cooling in the 1970s?
Anonymous
2016-09-15 20:02:45
Post No. 8347997
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http://content.time.com/time/magazine/article/0,9171,944914,00.html
>Another Ice Age?
>Monday, June 24, 1974
>In Africa, drought continues for the sixth consecutive year, adding terribly to the toll of famine victims. During 1972 record rains in parts of the U.S., Pakistan and Japan caused some of the worst flooding in centuries. In Canada’s wheat belt, a particularly chilly and rainy spring has delayed planting and may well bring a disappointingly small harvest. Rainy Britain, on the other hand, has suffered from uncharacteristic dry spells the past few springs. A series of unusually cold winters has gripped the American Far West, while New England and northern Europe have recently experienced the mildest winters within anyone’s recollection….
>The trend shows no indication of reversing. Climatological Cassandras are becoming increasingly apprehensive, for the weather aberrations they are studying may be the harbinger of another ice age…
>When Climatologist George J. Kukla of Columbia University’s Lamont-Doherty Geological Observatory and his wife Helena analyzed satellite weather data for the Northern Hemisphere, they found that the area of the ice and snow cover had suddenly increased by 12% in 1971 and the increase has persisted ever since. ..
>Scientists have found other indications of global cooling. For one thing there has been a noticeable expansion of the great belt of dry, high-altitude polar winds —the so-called circumpolar vortex—that sweep from west to east around the top and bottom of the world…
Well /sci/?
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>woaw bruh those scientists used to tell us the Rutherford model was accurate and then they changed their mind, that's proof they can't be trusted
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Different political agenda, different bullshit
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>>8348002
>implying the Rutherford model was highly publicized by the media before it was replaced
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How to quickly factor n-degree polynomials?
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>>8347910
not possible in general in a reasonable amount of time, sorry
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>>8347938
got a proof for that?
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>>8347910
why would you want to "just" factor polynomials without finding roots?
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CS week 3
>go to obligatory group work class
>mfw they force people into study groups in uni
>everyone has to analyze an algorithm in groups
>ezpz
>one guy doesn't get it
>I already don't like this guy, he tries to take control and is ignorant
>some other group mates try to explain it
>he keeps implying that he understands it followed by doing it wrong again
>because of his retarded pride, he can't handle being weak in areas
>mfw he yells at me "ANON, WHY DON'T YOU PARTICIPATE IN THE GROUP" to guide everyone's attention away from his continuous acts of failure
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Is there some way I can accelerate the inevitable fact that he is going to drop out?
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Kill him.
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>>8347804
Math week 9934834983
>No group work at all
Feels good. Get a good degree, faggot.
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>>8347883
Yes, do it.
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or is he really famous?
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>>8347710
>or is he really famous?
That's for sure.
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>>8347710
That man whose visage you posted is none other than the great genius Neil DeGrasse Tyson. His mind-boggling body of achievements in number theory and cosmology will forever live on in mathematical legend.
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This is impossible. The gap between Programming 1 and Programmin 2 is ridiculous.
My first assignment is to make an array of 10 bathroom stalls and have a person (x) fill out a center spot randomly, then fill out another spot either to the left or the right near the middle randomly, etc etc until all the spots are filled.
The second question is to make an arrayList with sequences in order to append/merge/merge without copying two arrayLists.
The third question is to partition any given number. I actually managed to code this one, but instead of my output being:
5
41
311
2111
11111
it is
5
14
113
1112
11111
I don't think anyone in my class is getting this. The difficulty is so much higher, how can anyone expect us to jump so far ahead? Can anyone help me? Any guides? Because I am lost as fuck.
Especially with the whole sequencing, which I'm not even sure what that means.
Or the fucking stalls. I only managed to print the array of empty stalls, so I basically started it only.
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>>8347669
What language?
Try solving it on paper first then transfer that to code
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>>8347695
Java.
What do you mean solve on paper?
I feel like I don't know anything. Literally everything I need to do I've had to look up on the internet where people pull RANDOM SYNTAX OUT OF THEIR ASS
like WTF is a sequence?!!??!?!?!!?!?!?!
WHY can't I just print out a sequence? Why does EVERYTHING have to result in an error?
Why am I so shitty at this? How is it that other almost IMMEDIATELy know how to solve a problem.
Like holy shit I can't fucking work in this field this is literally impossible.
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>>8347695
Professional programmer here. Everytime I've tried to lay out a problem in paper I've failed miserably.
Programming is all about having good intuition for problems, being able to shit out a base program that supposedly does what you want it to do and then you execute it to see if the results are what you want.
When it doesn't do what you want you put a billion breaks in the code and manually check how every variable is behaving.
That google movie where the programmers were scribling shit on windows instead of getting in the fucking computer is nothing but fantasy. Nobody does that.
Anonymous
Do we read the Principia in college physics classes 2016-09-15 17:19:25 Post No.8347576
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Do we read the Principia in college physics classes 2016-09-15 17:19:25 Post No.8347576
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Do we read the Principia in college physics classes
Anonymous
2016-09-15 17:19:25
Post No. 8347576
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just wondering?
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No, i never read that book in a physics class, i never even heard of it, it probably wasn't that important
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>>8347576
Actually got that from my granma for my birthday last year, interesting read but for the most part just over explanations of concepts youll understand well enough. I mainly have it as a bit of a "I've read principia"
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>>8347595
If you are not sarcastic, that is Newton's book. The one with:
>Gravity
>Calculus
>Laws of motion
No big deal
However, it is written in Latin and notation is strange.
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What does /sci/ think about legalizing drugs like marijuana?
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>>8347115
1. We are not a monolith
2. I say legalize it, and allow employers to test for whatever drugs they want.
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>>8347115
legalize all the way
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>>8347115
Just realize it, and legalize it
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For those of you who are in relationships... Does you partner study or have a career in STEM? If not, what do they think about your field of study or career?
>in b4 REEEEEE
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>>8346940
I'm doing PhD in EEE. My gf is doing PhD in industrial design. She thinks I'm a retard who can't comprehend anything about real life.
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>>8347084
>PhD in industrial design
Why the fuck would you do a fucking PhD in it and not just work?
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>>8346940
Im doing a masters in astrophysics and shes doing biology. Asks me to look at a graph and part of me dies each time.
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Name 1 discovery in physics made after 1945 that has affected the lives of ordinary people.
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Most of them.
I am going to take your bait question literally and name exactly one such invention
>the laser
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>>8346877
Name another one.
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chaos in dynamical systems, for its influence on weather forecast
Anonymous
Celestial determinants of success in research 2016-09-15 10:17:22 Post No.8346772
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Celestial determinants of success in research 2016-09-15 10:17:22 Post No.8346772
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Celestial determinants of success in research
Anonymous
2016-09-15 10:17:22
Post No. 8346772
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>Using the
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>>8346772
Gemini masterrace here.
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>>8346772
>0.042
>>0.042
>>>0.042
That's, like, non-existent
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>>8346772
/x/ RIGHT AGAIN, /sci/ BTFO.
Is [math]\frac{1}{\infty}>0[/math]?
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>>8346746
no, but:
1/x when x->oo
is
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>>8346746
The limit tends to zero but isn't zero so yes.
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Lrn2limit, buzzybee