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The Verge
HTC U11 first look
A 13 Year-Old Solved This In 1 Second. Can You?
"In a barn, 100 chicks sit peacefully in a circle. Suddenly, each chick randomly pecks the chick immediately to its left or right. What is the expected number of unpecked chicks?" This question is from the 2017 Raytheon National MathCounts competition that took place today. It took me like 5 minutes to solve it. Congrats to Luke Robitaille who buzzed in under one second and gave the correct answer! Watch the video for a detailed solution and a pedantic discussion of the wording of the question.

My blog post for this video: https://wp.me/p6aMk-5bI

If you've been watching my videos, you should know how to solve this! This problem is like guessing on a matching test (https://www.youtube.com/watch?v=h2VMMlpEtRU) or figuring out how many shuffled cards do not move position (https://www.youtube.com/watch?v=oUo53pIplhc).

Sources
https://www.nytimes.com/2017/05/15/us/math-counts-national-competition.html?smid=tw-nytimes&smtyp=cur&_r=0

https://twitter.com/i/web/status/864216835524362240

http://www.businessinsider.com/espn-math-competition-winning-question-2017-5

http://www.prnewswire.com/news-releases/luke-robitaille-named-2017-raytheon-mathcounts-national-champion-300457632.html

https://www.mathcounts.org/national-competition

http://www.espn.com/watch/?id=3034800&_slug_=2017-raytheon-mathcounts-national-competition

If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions

Connect on social media. I update each site when I have a new video or blog post, so you can follow me on whichever method is most convenient for you.

My Blog: http://mindyourdecisions.com/blog/
Twitter: http://twitter.com/preshtalwalkar
Facebook: https://www.facebook.com/pages/Mind-Your-Decisions/168446714965
Google+: https://plus.google.com/108336608566588374147/posts
Pinterest: https://www.pinterest.com/preshtalwalkar/
Tumblr: http://preshtalwalkar.tumblr.com/
Instagram: https://instagram.com/preshtalwalkar/
Patreon: http://www.patreon.com/mindyourdecisions

Newsletter (sent about 2 times a year): http://eepurl.com/KvS0r

My Books

"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 3.8/5 stars on 27 reviews) https://www.amazon.com/gp/product/1500497444

"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 2 reviews) https://www.amazon.com/gp/product/1523231467/

"Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.4/5 stars on 13 reviews. https://www.amazon.com/gp/product/1517421624/

"Math Puzzles Volume 2" is a sequel book with more great problems. (rated 5/5 stars on 3 reviews) https://www.amazon.com/gp/product/1517531624/

"Math Puzzles Volume 3" is the third in the series. (rated 3.8/5 stars on 4 reviews) https://www.amazon.com/gp/product/1517596351/

"40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.7/5 stars on 12 reviews) https://www.amazon.com/gp/product/1517319307/

"The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 4 reviews) https://www.amazon.com/gp/product/150779651X/

"Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 3 reviews) https://www.amazon.com/gp/product/1500866148/
TODAY



CNET TV
2017-10-18 12:42
Google Pixel 2 impresses, Microsoft rolls out new Surface Book
Google Pixel 2 impresses, Microsoft rolls out new Surface Book
TWiT Netcast Network
2017-10-18 05:58
Bringing KRACK Down to Earth
Bringing KRACK Down to Earth
YESTERDAY
Computerphile
2017-10-17 22:26
Krack Attacks (WiFi WPA2 Vulnerability) - Computerphile
Krack Attacks (WiFi WPA2 Vulnerability) - Computerphile
Sci Show
2017-10-17 21:00
How Often Do You Really Need to Shower?
How Often Do You Really Need to Shower?
MrTeslonian
2017-10-17 19:53
Self Feeding Sluice Box! Cool new invention takes the pain out of feeding a sluice box.
Self Feeding Sluice Box! Cool new invention takes the pain out of feeding a sluice box.
Linus Tech Tips
2017-10-17 19:11
We Turned LG’s WALLPAPER TV into a WINDOW!
We Turned LG’s WALLPAPER TV into a WINDOW!
patrickJMT
2017-10-17 18:56
Dijkstra's Algorithm : A Quick Intro on How it Works
Dijkstra's Algorithm : A Quick Intro on How it Works
MAKE Magazine
2017-10-17 18:32
This Tiny Factory Makes Massage Rollers In No Time Flat
This Tiny Factory Makes Massage Rollers In No Time Flat
The Khan Academy
2017-10-17 18:22
Adding multi digit numbers with place value
Adding multi digit numbers with place value
Big Think
2017-10-17 17:00
Richard Dawkins: Why Religion and Evolution Don't Mix Well
Richard Dawkins: Why Religion and Evolution Don't Mix Well
NightHawkInLight
2017-10-17 16:51
Experiments With Combustible Vapor
Experiments With Combustible Vapor
TEDTalks
2017-10-17 15:01
The warmth and wisdom of mud buildings | Anna Heringer
The warmth and wisdom of mud buildings | Anna Heringer
Android Authority
2017-10-17 13:00
Google Pixel 2 XL Unboxing and First Impressions
Google Pixel 2 XL Unboxing and First Impressions
Marques Brownlee
2017-10-17 13:00
Google Pixel 2 Unboxing! (Best Android 8.0 Features)
Google Pixel 2 Unboxing! (Best Android 8.0 Features)
The Verge
2017-10-17 13:00
Google Pixel 2 review
Google Pixel 2 review
Grant Thompson - "The King of Random"
2017-10-17 11:00
How To Make a
How To Make a "Rocket Revolver"
Android Authority
2017-10-17 02:19
Zizo Cases: The Perfect Fit for Samsung’s Most Fragile Device
Zizo Cases: The Perfect Fit for Samsung’s Most Fragile Device
TWiT Netcast Network
2017-10-17 01:29
Responsible Encryption vs. Warrant-Proof Encryption
Responsible Encryption vs. Warrant-Proof Encryption
Tested
2017-10-17 01:25
Supertroopers, Part Deux -  Still Untitled: The Adam Savage Project - 10/17/17
Supertroopers, Part Deux - Still Untitled: The Adam Savage Project - 10/17/17
Stanford University
2017-10-17 00:40
The Making of PACIFIC LINKS, Spring 2017
The Making of PACIFIC LINKS, Spring 2017
2017-10-16



Electronics Engineering
2017-10-16 22:35
EEVblog #1032 - John Kenny Keysight Interview
EEVblog #1032 - John Kenny Keysight Interview
Mike and Lauren
2017-10-16 21:41
Warehouse Update #1 - You Guessed It, Over Budget...
Warehouse Update #1 - You Guessed It, Over Budget...
CNET TV
2017-10-16 20:45
NutriBullet Balance blender will stir up the way you make a smoothie
NutriBullet Balance blender will stir up the way you make a smoothie
NASA Television
2017-10-16 19:48
A Year of Education on the Space Station Highlighted During In-Fight Event
A Year of Education on the Space Station Highlighted During In-Fight Event
Linus Tech Tips
2017-10-16 19:45
iPhone 8 / 8+ Review – A PC Hardware Guy’s Perspective
iPhone 8 / 8+ Review – A PC Hardware Guy’s Perspective
Wranglestar
2017-10-16 18:57
RYOBI VS MILWAUKEE Cordless Drill Torture Test
RYOBI VS MILWAUKEE Cordless Drill Torture Test
AweMeChannel
2017-10-16 17:00
Man At Arms - Steven Universe - Rose Quartz's Sword
Man At Arms - Steven Universe - Rose Quartz's Sword
3Blue1Brown
2017-10-16 16:48
Gradient descent, how neural networks learn | Deep learning, part 2
Gradient descent, how neural networks learn | Deep learning, part 2
Veritasium
2017-10-16 15:32
First Ever Light & Gravitational Wave Cosmic Event!
First Ever Light & Gravitational Wave Cosmic Event!
Computer World
2017-10-16 15:31
9 hidden Android shortcuts that will save you time
9 hidden Android shortcuts that will save you time
How Stuff Works
2017-10-16 15:28
Two Legal Gun Modifications
Two Legal Gun Modifications
Computer World
2017-10-16 15:26
5 clever uses for old Android phones
5 clever uses for old Android phones
TEDTalks
2017-10-16 15:24
Future tech will give you the benefits of city life anywhere | Julio Gil
Future tech will give you the benefits of city life anywhere | Julio Gil
ElectroBOOM
2017-10-16 15:20
Is Space Travel Possible??
Is Space Travel Possible??
NASA Goddard
2017-10-16 14:40
Doomed Neutron Stars Create Blast of Light and Gravitational Waves
Doomed Neutron Stars Create Blast of Light and Gravitational Waves
Big Think
2017-10-16 14:30
How America Came Apart: Global Trade, Wars, Prisons, Wall Street, Power Politics | Van Jones
How America Came Apart: Global Trade, Wars, Prisons, Wall Street, Power Politics | Van Jones
Massachusetts Institute of Technology (MIT)
2017-10-16 14:09
Neutron stars collide
Neutron stars collide
Tested
2017-10-16 14:00
The Orville's Krill Makeup Demo at KNB EFX!
The Orville's Krill Makeup Demo at KNB EFX!
Sixty Symbols
2017-10-16 11:13
Stranger Things - Sixty Symbols
Stranger Things - Sixty Symbols
Jeri Ellsworth
2017-10-16 09:35
Museum of Radio and Technology Part 4 - Record Players and Hi-Fi
Museum of Radio and Technology Part 4 - Record Players and Hi-Fi
Jeri Ellsworth
2017-10-16 07:16
Museum of Radio and Technology Part 3 - Televsion
Museum of Radio and Technology Part 3 - Televsion
2017-10-15
BigcLiveDotCom
2017-10-15 22:09
Inside an inflatable solar camping light.  (schematic)
Inside an inflatable solar camping light. (schematic)
TWiT Netcast Network
2017-10-15 21:06
Apple's Spielberg Magic
Apple's Spielberg Magic
MindYourDecisions
2017-10-15 21:05
HARD 8th Grade Geometry Problem From Russia: The Octagon In The Parallelogram
HARD 8th Grade Geometry Problem From Russia: The Octagon In The Parallelogram
Sci Show
2017-10-15 21:00
Cyclopia: A Rare Birth Defect That Could Help Cure Cancer
Cyclopia: A Rare Birth Defect That Could Help Cure Cancer
Wranglestar
2017-10-15 19:16
This Technique Could Save Your Chainsaw
This Technique Could Save Your Chainsaw
Big Think
2017-10-15 15:44
Your Brain Is an Illusion Factory: Time, Color, Causality | Dean Buonomano
Your Brain Is an Illusion Factory: Time, Color, Causality | Dean Buonomano
GreatScott
2017-10-15 15:00
How NOT to Mill a PCB (except for SMD)
How NOT to Mill a PCB (except for SMD)
RedKB
2017-10-15 14:42
Rubik's Flip - Challenging  my Wife!
Rubik's Flip - Challenging my Wife!
Tested
2017-10-15 14:00
The Weird World of Bootleg Toys
The Weird World of Bootleg Toys
Cody´s Lab
2017-10-15 10:47
Water Pump With No Moving Parts? (except water of course)
Water Pump With No Moving Parts? (except water of course)
2017-10-14
AvE
2017-10-14 22:36
Good News for Patrons | F**K Youtube's Censorbot
Good News for Patrons | F**K Youtube's Censorbot
Linus Tech Tips
2017-10-14 22:32
$1337 Gaming PC Challenge - Scrapyard Wars 6 Pt. 1
$1337 Gaming PC Challenge - Scrapyard Wars 6 Pt. 1
Sci Show
2017-10-14 21:00
Why Do Dogs Shake to Dry Off?
Why Do Dogs Shake to Dry Off?
MAKE Magazine
2017-10-14 20:25
Make: Live - Raspberry Pi Robo Car
Make: Live - Raspberry Pi Robo Car
Tested
2017-10-14 17:00
Toyqube: Turning 2D Art into Sculpted Collectibles
Toyqube: Turning 2D Art into Sculpted Collectibles
Austin Evans
2017-10-14 15:57
Why Does the Nintendo 3DS Exist in 2017?
Why Does the Nintendo 3DS Exist in 2017?
Big Think
2017-10-14 15:26
Your Face Makes the First Impression—What Does It Say? Bias, Evolution, Trust | Alexander Todorov
Your Face Makes the First Impression—What Does It Say? Bias, Evolution, Trust | Alexander Todorov
AvE
2017-10-14 14:25
BOLTR: Aliexpress vs Omron | RELAYS EXPLAINED!
BOLTR: Aliexpress vs Omron | RELAYS EXPLAINED!
CNET TV
2017-10-14 12:53
RIP Windows Mobile, new Oculus and Kindle
RIP Windows Mobile, new Oculus and Kindle
Grant Thompson - "The King of Random"
2017-10-14 11:00
How To Build A MINI Solar Scorcher
How To Build A MINI Solar Scorcher
NASA Television
2017-10-14 10:03
Russian Cargo Craft Launches for Journey to International Space Station
Russian Cargo Craft Launches for Journey to International Space Station
Electronics Engineering
2017-10-14 08:52
EEVacademy #7 - Designing Combinatorial Digital Logic Circuits
EEVacademy #7 - Designing Combinatorial Digital Logic Circuits
Linus Tech Tips
2017-10-14 07:09
Nvidia might BAN OVERCLOCKING on new 1070Ti - WAN Show October 13, 2017
Nvidia might BAN OVERCLOCKING on new 1070Ti - WAN Show October 13, 2017
Android Authority
2017-10-14 06:42
Google Home Mini privacy breach, Oppo F5 Leak, S8 Active now on T-Mobile
Google Home Mini privacy breach, Oppo F5 Leak, S8 Active now on T-Mobile
BigcLiveDotCom
2017-10-14 04:43
Inside a diamond tester.  (thermal conductivity)
Inside a diamond tester. (thermal conductivity)
The Khan Academy
2017-10-14 00:30
Estimate multiplying multi digit numbers
Estimate multiplying multi digit numbers
2017-10-13
The Khan Academy
2017-10-13 23:46
Approximating multi digit division
Approximating multi digit division
TWiT Netcast Network
2017-10-13 22:15
Can You Pay Lawyers in Bitcoin?
Can You Pay Lawyers in Bitcoin?
The Khan Academy
2017-10-13 21:29
Rounding decimals on the number line
Rounding decimals on the number line
Sci Show
2017-10-13 21:00
The 2017 Nobel Prizes: Biological Clocks and Microscopy
The 2017 Nobel Prizes: Biological Clocks and Microscopy
NASA Television
2017-10-13 20:07
October Spacewalks Aboard the Space Station on This Week @NASA – October 13, 2017
October Spacewalks Aboard the Space Station on This Week @NASA – October 13, 2017
MIT
2017-10-13 19:07
Short Project: Bodypaint
Short Project: Bodypaint
MIT
2017-10-13 19:07
Guided Tutorial: Introduction to Unity
Guided Tutorial: Introduction to Unity
MIT
2017-10-13 19:07
Short Project: Jedi Ball
Short Project: Jedi Ball
MIT
2017-10-13 19:07
Short Project: Car Racing
Short Project: Car Racing
Mr Carlsons Lab
2017-10-13 19:02
What Can Old Test Gear Teach Us About Electronics? Find Out.
What Can Old Test Gear Teach Us About Electronics? Find Out.
Physics Woman
2017-10-13 18:30
Can you solve the magnet riddle? ft YouTube CEO Susan Wojcicki
Can you solve the magnet riddle? ft YouTube CEO Susan Wojcicki
NASA Goddard
2017-10-13 18:22
NASA Satellites See Wildfires from Space
NASA Satellites See Wildfires from Space
CNET TV
2017-10-13 17:40
Facebook lets you order food for your face hole (CNET News)
Facebook lets you order food for your face hole (CNET News)
Steve Ramsey
2017-10-13 17:10
6 Keys to Shop Safety | WOODWORKING BASICS
6 Keys to Shop Safety | WOODWORKING BASICS
CNET TV
2017-10-13 17:03
High-tech baby gear for new parents (Tech Minute)
High-tech baby gear for new parents (Tech Minute)
Android Authority
2017-10-13 16:51
Get the Google Pixel 2 launcher on any phone
Get the Google Pixel 2 launcher on any phone
Computerphile
2017-10-13 15:41
Homotopy Type Theory Discussed - Computerphile
Homotopy Type Theory Discussed - Computerphile
TEDTalks
2017-10-13 14:10
Why people of different faiths are painting their houses of worship yellow | Nabila Alibhai
Why people of different faiths are painting their houses of worship yellow | Nabila Alibhai
Tested
2017-10-13 14:00
PROJECTIONS, Episode 26: Oculus Connect 4, Santa Cruz Prototype Hands-On
PROJECTIONS, Episode 26: Oculus Connect 4, Santa Cruz Prototype Hands-On
Minute Earth
2017-10-13 12:50
Where Do Our Drugs Come From?
Where Do Our Drugs Come From?
Matthias Wandel
2017-10-13 11:30
A bell that rings two notes at once
A bell that rings two notes at once
Henders 007
2017-10-13 08:12
Tim's Funky Dice
Tim's Funky Dice
The Khan Academy
2017-10-13 00:21
Mapping shapes example
Mapping shapes example
2017-10-12
TWiT Netcast Network
2017-10-12 23:40
Western Digital Promises 40TB HDDs
Western Digital Promises 40TB HDDs
Marques Brownlee
2017-10-12 20:51
DxOMark Smartphone Ratings: Explained!
DxOMark Smartphone Ratings: Explained!
AsapSCIENCE
2017-10-12 19:41
Why Are You Anxious?
Why Are You Anxious?
CNET TV
2017-10-12 19:35
Equifax site breached, says report
Equifax site breached, says report
NASA Television
2017-10-12 19:35
Pushing the Envelope
Pushing the Envelope
NASA Television
2017-10-12 18:39
NASA Hispanic Heritage Month Event, ¡Latinos STEM Up!
NASA Hispanic Heritage Month Event, ¡Latinos STEM Up!
Big Think
2017-10-12 17:00
Are We Born Optimistic? Or Is It a Coping Skill We Learn as Adults? | Lori Markson
Are We Born Optimistic? Or Is It a Coping Skill We Learn as Adults? | Lori Markson
Linus Tech Tips
2017-10-12 16:04
Gaming PC Build-Off, $10,000 Prize!! - LG Ultrawide Festival 2017
Gaming PC Build-Off, $10,000 Prize!! - LG Ultrawide Festival 2017
Austin Evans
2017-10-12 16:00
The UltraWide Gaming Setup Battle!
The UltraWide Gaming Setup Battle!
Android Authority
2017-10-12 16:00
Best Android Tablets (Fall 2017)
Best Android Tablets (Fall 2017)
I Like To Make Stuff
2017-10-12 15:30
Cyborg Arm (Cosplay/Halloween Costume How To)
Cyborg Arm (Cosplay/Halloween Costume How To)
Wranglestar
2017-10-12 15:21
How To Work With Chainsaws Tutorial
How To Work With Chainsaws Tutorial
TEDTalks
2017-10-12 13:19
The fascinating secret lives of giant clams | Mei Lin Neo
The fascinating secret lives of giant clams | Mei Lin Neo
Android Authority
2017-10-12 08:21
OnePlus 5T & Honor 7X Leaks, Note 9 under-screen-fingerprint sensor
OnePlus 5T & Honor 7X Leaks, Note 9 under-screen-fingerprint sensor
Tested
2017-10-12 07:00
Quadcast - This is Only a Test 419 - 10/12/17
Quadcast - This is Only a Test 419 - 10/12/17
MindYourDecisions
2017-10-12 06:42
Baseball's Home Plate Is Impossible Mathematically
Baseball's Home Plate Is Impossible Mathematically
TWiT Netcast Network
2017-10-12 05:15
Testing Your Pine Board
Testing Your Pine Board
2017-10-11
Cody´s Lab
2017-10-11 23:44
Will 1300fps Lead Set Off Nitrated Glycerol?
Will 1300fps Lead Set Off Nitrated Glycerol?
The Khan Academy
2017-10-11 23:30
Message to LearnStormers from Paralympic ski racer Josh Sundquist
Message to LearnStormers from Paralympic ski racer Josh Sundquist
Linus Tech Tips
2017-10-11 22:25
High End Gaming in your PALM - ASRock DeskMini GTX
High End Gaming in your PALM - ASRock DeskMini GTX
Sci Show
2017-10-11 21:00
National Fossil Day: SciShow Talk Show
National Fossil Day: SciShow Talk Show
Big Think
2017-10-11 17:00
Everything Is Made of Quarks—Why Are Only Some Things Conscious? | Max Tegmark
Everything Is Made of Quarks—Why Are Only Some Things Conscious? | Max Tegmark
AvE
2017-10-11 16:03
BOLTR: Snap-On Mac Husky HF SHOWDOWN | Torque 'em till they BLOW!
BOLTR: Snap-On Mac Husky HF SHOWDOWN | Torque 'em till they BLOW!
The Royal Institution
2017-10-11 15:31
Q&A - The Psychology and Neuroscience of Happiness
Q&A - The Psychology and Neuroscience of Happiness
The Royal Institution
2017-10-11 15:31
The Psychology and Neuroscience of Happiness
The Psychology and Neuroscience of Happiness
Numberphile
2017-10-11 15:19
Secrets to measuring a piece of paper - Numberphile
Secrets to measuring a piece of paper - Numberphile
The Wood Whisperer
2017-10-11 14:14
Crooked Garden Gate
Crooked Garden Gate
TEDTalks
2017-10-11 13:39
The boost students need to overcome obstacles | Anindya Kundu
The boost students need to overcome obstacles | Anindya Kundu
CNET TV
2017-10-11 13:03
The updated Kindle Oasis e-reader
The updated Kindle Oasis e-reader
The Verge
2017-10-11 13:00
This house can get rid of your utility bill
This house can get rid of your utility bill
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