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ELI5: probability in rolling a die | alycdy | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why was the birthday lottery of the Vietnam draft not random? | amv8ng | false | explainlikeimfive | Mathematics | [removed] |
ElI5: Can some one tell me how compound interest works? | anmo4h | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why do 0-9 roughly show up 1/10 of the time in irrational numbers like pi or √2? | anmoyz | false | explainlikeimfive | Mathematics | I looked at the first 1,000,000 digits of √2 and noticed that 0-9 each appear about 100,000 times. The same goes for pi. Why is this? Does it have to do with probability? It surprises me that this pattern emerges for a seemingly random sequence of digits. |
ELI5: How does the "conditional connective" work? | ao5st6 | false | explainlikeimfive | Mathematics | How can this expression (p -> q) be true or false. If p is true, and q is false, then the expression is false, but what is false??? To me, that just means the expression doesn't make sense. Is that what is meant when we say the expression is false? For example: If it is sunny, then it is hot. p = It is sunny q = It is hot Ok, if it is sunny, then it is hot. That's true. If it is sunny, then it is not hot. That's false. But what about if it is not sunny, then it is hot. Shouldn't that be false? |
ELI5: Why does windowing with modified discrete cosine transform work? | aohadb | false | explainlikeimfive | Mathematics | I already have trouble fully getting how plain MDCT works by discarding half the coefficients, but that's not the main part of my question. My bigger question is why does windowing make things better? Firstly, IMDCTing lapped segments already allows perfect reconstruction, so why go ahead and window the segments as well? Second, why would you window the segment twice: once before MDCT and once after? Wouldn't that just leave the overlapping segment with a reduced signal? I don't get it! |
ELI5: How is statistical significance determined in formulas | ap9czn | false | explainlikeimfive | Mathematics | Things like P-test, T-test and iirc chi squared are all different statistical formulas which help you determine if the data you've collected is statistically significant. Usually you compare the value calculated to the value appropriate for the sample size. But who or what determines the actual value tables for comparison? How do you know that for a given sample size your calculated value should be x and at that point it becomes a significant result? |
ELI5: how can you be "half a game" behind in the NBA? | apbgp9 | false | explainlikeimfive | Mathematics | null |
ELI5: why a graph can only have 2 horizontal Asymtotes. | apikuc | false | explainlikeimfive | Mathematics | null |
ELI5: What is the chaos theory? | apjb69 | false | explainlikeimfive | Mathematics | [deleted] |
ELI5: why doesn’t X divided by 0 equal X instead of error | apurc3 | false | explainlikeimfive | Mathematics | [deleted] |
ELI5: WHY do all the angles in a quadrilateral add up to 360°? | aq1qtb | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why do studies like Physics and Chemistry prefer significant figures over higher decimal accuracy? | aq98it | false | explainlikeimfive | Mathematics | null |
ELI5: How do you find the likelihood of a probability given the initial probability and the actual attempts it took to reach that outcome? | arq79w | false | explainlikeimfive | Mathematics | [removed] |
ELI5: How does 'log' function help to make numbers more understandable? | arsya4 | false | explainlikeimfive | Mathematics | I've been told several times, especially in computer science classes, that I should try to apply log function to resultant numbers so that "it's easier to look at them". However, I still don't understand why I should do that and what actually becomes clearer between the numbers after applying log. I've tried putting numbers into log and all I see is that the resultant numbers being converted to a logarithmic scale that's all. I don't see how this has made the numbers easier to understand. I must be missing something. Can anyone explain to me why I should use log and how does it actually help to make numbers "easier to look at"? |
ELI5: What causes the mathematical problems inherent in the Kruger-Dunning type of graph which causes mathematical artifacts in the measurement of the Dunning Kruger effect? | arwvdv | false | explainlikeimfive | Mathematics | I'm referring to this section of the wikipedia page on the Dunning Kruger effect (a cognitive bias in which people of low ability have illusory superiority and mistakenly assess their cognitive ability as greater than it is), where it talks about how the (y-x) vs (x) scatter plots seemed to mistake mathematical artifacts as the products of human behaviour? And that other kinds of graphing can attenuate noise? What do they mean exactly by attenuating noise and how would different methods of graphing affect the findings? > Two unique papers in Numeracy reveal problems with the graphic introduced in the 1999 Kruger and Dunning paper.[14][15] Subsequent researchers used it, (y − x) versus (x) scatter plots, and related variants for nearly two decades. The authors show how a major part of the body of literature that used these approaches seems to have mistaken and interpreted mathematical artifacts as the products of human behavior. The two papers employed paired, well-aligned instruments of known reliability to examine the evaluation of self-assessment measures from the perspective of signal and noise. They show how the mathematical problems inherent in the Kruger–Dunning type of graph can be overcome by other kinds of graphing that attenuate noise or employ categorical data from known novices and experts. When artifacts are eliminated, the evidence is strong that humans are generally correct in their self-assessments, with only a small percentage of the participants who were studied exhibiting performance that might merit the label "unskilled and unaware of it". The authors' findings refute the claim that humans, in general, are prone to having greatly inflated views of their abilities, but they support two other tenets of the original Kruger and Dunning research: (1) that self-assessment skill can be learned and (2) experts usually self-assess themselves with better accuracy than do novices. |
In integration what does the constant of integration do. | arx3p2 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What happens to volume and surface area of spheres in n-dimensions? | ascwz4 | false | explainlikeimfive | Mathematics | It turns out that the volume of a 5th dimensional sphere of radius 1 will be a maximum, and then the volume of 6th, 7th, 8th, etc. dimensional spheres will be less. In fact, as the dimension increases, the volume gets closer and closer to 0. Why is this, and what then happens to the surface area of spheres in n-dimensions? |
ELI5: What are Lie Algebras and Lie groups? | askqtl | false | explainlikeimfive | Mathematics | null |
ELI5: Why are degrees on a circle and degrees temperature both degrees when they have nothing in common? | aswnfr | false | explainlikeimfive | Mathematics | null |
Eli5: One word: logarithms | asx1v7 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What are SIN, COS, and TAN, and how are they used in movement and direction? | at36v5 | false | explainlikeimfive | Mathematics | [removed] |
In regards to determining the speed of the Earth spinning, what went into figuring that out? | atczzs | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why do two negatives multiply to a positive? | atpm0c | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why is it that positive real numbers and zero have the property of being able to describe quantities, but other numbers do not? | atx1no | false | explainlikeimfive | Mathematics | I can make a coherent statement of "this sandwich has 12.9 grams of protein" or "this sandwich has 0 grams of protein," but I cannot make a coherent statement of "this sandwich has -5.3 grams of protein" or "this sandwich has (2+5i) grams of protein." |
ELI5 how logarithms work | auh0r9 | false | explainlikeimfive | Mathematics | I took precalculus, but logs still make no sense to me. Properties of logs, how to apply them to real life, all of it, and the more explanation the better. Feel free to pretend I’m in elementary school. They confuse me so much that I don’t care how basic you get. |
ELI5: Math for Combination outcomes | av74r9 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What does "total variation distance" mean when estimating randomness of a deck of cards? | av8f29 | false | explainlikeimfive | Mathematics | null |
ELI5: how come there are infinite sections between two numbers | avc0wo | false | explainlikeimfive | Mathematics | null |
Inner Workings of F+B Inventory | a2er6s | false | explainlikeimfive | Mathematics | [removed] |
ELI: Other than really thorny philosophical discussions (fractal self-similarity has interesting applications to philosophy) and a sensible way to explain away what is often dismissed as "experimental error," of what tangible/practical value is study in chaos theory? | a2pdjn | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What is the Pythagorean Theorem and how does it work? | a33he3 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why does anything to the power zero always equal 1? | a3dmor | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Circle of 5ths, how does it work? | a3ldp1 | false | explainlikeimfive | Mathematics | Forgive me if this is a repost but over the past two years I've been trying to learn guitar. I've finally bit the bullet and dove into musical theory, hoping to help explain why certain notes work with other notes, and what builds a chord ECT. I seek help from here because I have no prior musical education I've learned everything so far by ear and hope maybe a fellow musician can assist me in my conquest, thanks for your time guys! |
ELI5: How does the pigeonhole principle work (Probability)? | a3m4wv | false | explainlikeimfive | Mathematics | [deleted] |
ELI5: What are uniform polyhedra? | a3ouyk | false | explainlikeimfive | Mathematics | null |
ELI5: Why is x=y a diagonal line on a graph? | a3p2d3 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: If two absolutely perfect spheres are in contact (surface-to-surface) with one another, how can they share any more than an infinitely small area of surface contact with one another if both surfaces are curved? | a3v98s | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why do many things, e.g. students grades in a class each year, follow the distribution of Bell Curve? Shouldn't they follow a random distribution each time? | a447xl | false | explainlikeimfive | Mathematics | null |
ELI5: is there a mathematical theory that explains/predicts ‘good’ music? | a4ftky | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What’s the relationship between Logarithms and the Richter Scale? | a515tl | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What are Fibonacci numbers? | a59ysp | false | explainlikeimfive | Mathematics | null |
Why do some months have more days than others? | a5dcpa | false | explainlikeimfive | Mathematics | [removed] |
ELI5: What does over/under mean in terms of gambling, and is there a trick to understanding/calculating odds? | a5vynf | false | explainlikeimfive | Mathematics | I hear it all the time but don't understand it. |
ELI5:How does 1 - - 1=2? | a6d5ik | false | explainlikeimfive | Mathematics | I know it does.Ineed to explain it to my 8yo brother,can’t provide real life examples. |
ELI5: Are units just constants multiplied by the numbers? | a6fnwa | false | explainlikeimfive | Mathematics | [removed] |
ELI5: How quick are radio telescopes? | a6shvd | false | explainlikeimfive | Mathematics | I was just watching a video where it says they pointed our global network of telescopes to the centre of out galaxy for 5 days and they got all the data they need, that's fine and all, but if it's 100,000 lightyears to the centre of our galaxy, isn't 5 days a little too short..? |
Why is math such a perfect fit? | a7ko4q | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why does any number to the power of zero equal one(x^0=1)? | a7op88 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: When a DVD Logo hits the corner perfectly, how come it does not go into an infinite loop hitting the opposite corner? | a7s3og | false | explainlikeimfive | Mathematics | null |
ELI5: Why would the surface areas of a sphere and a baseless cylinder--with equal height and circumference--be equal? | a7tu2y | false | explainlikeimfive | Mathematics | [removed] |
What is an eigenfunction and how does it work? | a86o4n | false | explainlikeimfive | Mathematics | [removed] |
ELI5: How probabilities work when there are multiple instances. | a8af7i | false | explainlikeimfive | Mathematics | For example, if I have a 15% chance of something happening 5 times, what are my overall chances of it happening even once? How is this calculated? |
ELI5: soap went inside my hairy pusspuss? is this okie? | a8zny4 | false | explainlikeimfive | Mathematics | [removed] |
How much volume does an object have to have before we call it 3-Dimensional? | a91i07 | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Intuition behind integration of two seemingly similar functions | a97ige | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Why can't we base units of time on a decimal system. That is, each unit is a part of, divisible by, or a power of, 10. i.e. 1 minute = 100 seconds, 1 hour = 100 minutes, 1 day = 10 hours, 1 week = 10 days and so on? | a9m7fh | false | explainlikeimfive | Mathematics | If we changed the actual length of each unit of measurement, could this work? Or is there some kind of law based on rotations of the Earth or Sun that we have to adhere to? I have a 3 year old and explaining time to him would be much easier :-) |
ELI5: What bell prime numbers are and their significance | cymz3f | false | explainlikeimfive | Mathematics | null |
ELI5 I recently learned about Graham's Number, which completely blew my mind. Then I looked up some other large numbers, and came across TREE(3). After reading some stuff about it, I still have no clue as to what it is. Can anyone explain this concept with general language terms? | cyq0kr | false | explainlikeimfive | Mathematics | [removed] |
ELI5: if the perimeter of a circle and a square are the same why is the area of the circle greater? | czw317 | false | explainlikeimfive | Mathematics | null |
ELI5: u-substitution for integration | czxir9 | false | explainlikeimfive | Mathematics | With Leibniz notation, there is a cool trick where if du/dx = g'(x), then du = g'(x) dx. However, can this be explained using function notation? What is function notation's version of 'if du/dx = g'(x), then du = g'(x) dx'? |
ELIF: I need a clear & concise answer about the decimals in division. Please help! | d0981r | false | explainlikeimfive | Mathematics | [removed] |
ELIF: I need a clear & concise answer about the decimals in division. Please help! | d09wvq | false | explainlikeimfive | Mathematics | [removed] |
ELIF: How did music keys become a thing and how do they work? When were they first conceptualized? | d1643r | false | explainlikeimfive | Mathematics | null |
Is mathematics invented or is it discovered? | d19e56 | false | explainlikeimfive | Mathematics | [removed] |
ELI5; What are random variables and their probability distributions and what are their real world applications? | d3ei9h | false | explainlikeimfive | Mathematics | null |
ELI5: the Baum–Welch algorithm | d3tmts | false | explainlikeimfive | Mathematics | null |
As far as I know, we can calculate a large quantity of digits from π. But how do they exactly calculate so many digits with such precision? | d3ttqg | false | explainlikeimfive | Mathematics | [removed] |
ELI5: How does infinity work with regards to decimals? | d67o5u | false | explainlikeimfive | Mathematics | If I start at 1 and my goal is to get to 2, I could move to 1.1 and be a little bit closer to 2. Then move to 1.11, and be even closer. Then 1.111, so on and so forth. I understand that with each move, the step forward is smaller than the previous one. But it's moving forward nonetheless. How is it that I can forever move forward, but never get there? |
Why do Common Core Math algorithms change and gain more steps and what is the motive behind it? | d6mxcb | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Significant Figures in Math | d7e8sp | false | explainlikeimfive | Mathematics | [removed] |
ELI5: Product of Sums and Sums of Products | d9h24j | false | explainlikeimfive | Mathematics | Hi boolean-savvy people, Im following a course of digital logic and the lecture notes are... well let's not go down that path. I don't understand how POS and SOP standards work, and every search results in an unclearly formatted example of mixed AND and OR notations, the word "canonical" everywhere and no clarity or sense of low-level explanations. Surely someone on the interwebs can help me out here. |
Eli5: difference between t and s distribution in statistics | d9m6c7 | false | explainlikeimfive | Mathematics | null |
ELI5: What exactly is ε0? | daous7 | false | explainlikeimfive | Mathematics | [removed] |