Probability problems | Probability theory paradoxes
The Boy or Girl paradox surrounds a set of questions in probability theory, which are also known as The Two Child Problem, Mr. Smith's Children and the Mrs. Smith Problem. The initial formulation of the question dates back to at least 1959, when Martin Gardner featured it in his October 1959 "Mathematical Games column" in Scientific American. He titled it The Two Children Problem, and phrased the paradox as follows: * Mr. Jones has two children. The older child is a girl. What is the probability that both children are girls? * Mr. Smith has two children. At least one of them is a boy. What is the probability that both children are boys? Gardner initially gave the answers 1/2 and 1/3, respectively, but later acknowledged that the second question was ambiguous. Its answer could be 1/2, depending on the procedure by which the information "at least one of them is a boy" was obtained. The ambiguity, depending on the exact wording and possible assumptions, was confirmed by Maya Bar-Hillel and Ruma Falk, and Raymond S. Nickerson. Other variants of this question, with varying degrees of ambiguity, have been popularized by Ask Marilyn in Parade Magazine, John Tierney of The New York Times, and Leonard Mlodinow in The Drunkard's Walk. One scientific study showed that when identical information was conveyed, but with different partially ambiguous wordings that emphasized different points, that the percentage of MBA students who answered 1/2 changed from 85% to 39%. The paradox has stimulated a great deal of controversy. The paradox stems from whether the problem setup is similar for the two questions. The intuitive answer is 1/2. This answer is intuitive if the question leads the reader to believe that there are two equally likely possibilities for the sex of the second child (i.e., boy and girl), and that the probability of these outcomes is absolute, not conditional. (Wikipedia).
Why Boys Are Mean To Girls They Like
It can be very hard to keep admitting to yourself and the world that you like someone – when it seems they may not like you. If you like our films, take a look at our shop (we ship worldwide): https://goo.gl/1qB7VT FURTHER READING “An enormous amount of trouble in the world – especi
From playlist RELATIONSHIPS
When women nag.. I just hope I can do the same!
When women nag.. I just hope I can do the same!
From playlist Humor
High school dating can be tough -- even when you're smart, pretty and popular. Cristen also considers "acceptable terms for female humans." Share this on Facebook: http://on.fb.me/1paRhah Share this on Twitter: http://ctt.ec/pLh9A Subscribe: http://bit.ly/1l8JXv3 On the web: http://www.st
From playlist Stuff Mom Never Told You
Boy gets caught masturbating ( jacking off ) to a nature video of two bears fucking by girlfriend
Absolute funny video of a girl walking up behind her boyfriend who is jacking off ( wanking ) to a nature video of two bears fucking. Wait for the end you'll plain piss your pants laughing.
From playlist Humor
This May Be The Most Counterintuitive Probability Paradox I've Ever Seen | Can you spot the error?
WARNING: If you haven't see this paradox before (and probability isn't your thing), it may seem like math is broken here. I just want to say that it's not and it took me A LOT of thinking to finally see why. I encourage you to watch the video and see what conclusions you come to, but then
From playlist Prob and Stats
One of Cute Vodafone advertisement featuring a boy offering help to Girl
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Most paradoxes either stem from the misunderstanding of a topic, or aren't really paradoxes. However, here is a paradox that seems to contradict logic itself. What's going on here? And what does the liar paradox have to do with computer science? #some2
From playlist Summer of Math Exposition 2 videos
About the Tuesday Boy Probability Problem
Lots of people are arguing about the solution to the Tuesday Boy problem. What is the probability? 1/2? 1/3? 13/27? or even 0? Here is my point of view about it, in simple words. This is related to Bertrand paradox and also to Bertrand's box paradox Thanks to Rob Eastaway @rob
From playlist Other...
TED-Ed presented a riddle last week based on a classic probability problem. However in the riddle there is a small and seemingly insignificant detail that changes the calculation. In this video I present the pertinent details of the frog riddle, explain its connection to the boy or girl pa
From playlist Statistics And Probability
Chapter 4.1: Basics of Probability
Chapter 4.1 from "Introduction to Statistics, Think & Do" by Scott Stevens (http://www.StevensStats.com) Textbook from Publisher, $29.95 print, $9.95 PDF http://www.centerofmathematics.com/wwcomstore/index.php/thinkdov4-1.html Textbook from Amazon: https://amzn.to/2zJRCjL
From playlist Statistics Lecture Videos
How Being A "Nice Guy" Is Sabotaging Your Relationships
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From playlist Fan Q&A
Julius Sumner Miller: Lesson 11 - Centrifugal Force and Other Strange Matters
The name "centrifugal" force given to certain events is very often badly used. Consider a car going round a curve. A book lies on the seat beside you. You are the driver. You take a curve to the left - say. As you make the curve you see the book move radially out on the seat - movi
From playlist Julius Sumner Miller - Full Physics Laboratory Demonstrations
How To Solve The Probability The Newborn Is A Boy - HARD Interview Question
This problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a survey and selects a child at rand
From playlist Statistics And Probability
Can You Solve The Boys And Girls Painting Rooms Riddle?
Thanks to Oladele from Nigeria for suggesting this problem! Team A has 4 girls and 7 boys. Team A takes 5 days to paint 4 rooms. Team B has 7 girls and 10 boys. Team B takes 4 days to paint 5 rooms. Team C has 8 girls and 5 boys. How long will it take team C to paint 6 rooms? Thanks to al
From playlist Math Puzzles, Riddles And Brain Teasers
A family has several children. Each boy in this family has as many sisters as brothers but each of the girls has twice as many brothers as sisters. How many boys and girls are there? #math #maths #mathematics #shorts References https://prepyourmathblog.wordpress.com/2016/08/05/some-of-th
From playlist Math Shorts
Logic: The Structure of Reason
As a tool for characterizing rational thought, logic cuts across many philosophical disciplines and lies at the core of mathematics and computer science. Drawing on Aristotle’s Organon, Russell’s Principia Mathematica, and other central works, this program tracks the evolution of logic, be
From playlist Logic & Philosophy of Mathematics
Can you solve this logic test?
At first the problem sounds impossible to solve, but it can be worked out with careful logical reasoning! UK Junior Mathematical Challenge 2009 https://archive.ukmt.org.uk/pdfs/archive/JMC2009_sol_short.pdf Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Sen
From playlist Logic Puzzles And Riddles
La psychiatrie des adolescents - J.-S. Eideliman, I. Coutant
Au coeur de l'Etat Comment les institutions traitent leur public International Conference supported by the European Research Council École des Hautes Études en Sciences Sociales (Paris) and Institute for Advanced Study (Princeton) Paris, 11 & 12 June 2012 More videos on http://video.ias
From playlist Social Science
Boy Girl Conditional Probablity
Visual tutorial on conditional probability. Two short problems. P(A|B) What is the probability of A knowing B. What is the probability that both children are boys KNOWING that at least one child is a boy. Playlist on Probability http://www.youtube.com/course?list=EC482E6C6B5F0A30E7 ht
From playlist Probability