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\nCan You Solve The Alien Extinction Riddle? Hard Job Interview Question\n

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\nA single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2...\nA single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d) the alien replicates itself twice (3 aliens total). With bad luck the alien race might die out quickly. But with good luck the alien race might survive indefinitely. What is the probability the alien race eventually dies out and goes extinct? This video presents a solution to this problem, which has been asked as a technical job interview question. Blog post This puzzle was emailed to me by Anand Gautam. It has been asked as a job interview question in technical jobs. Math StackExchange Analytics Vidhya (See problem 10, also includes a proof) Branching process (statistics) Wikipedia Math notes on branching (more technical) Thanks to Patrons! Kyle Brian M. Mooney Shrihari Puranik If you like my videos, you can support me at Patreon 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 Twitter Facebook Google+ Pinterest Tumblr Instagram Patreon Newsletter (sent about 2 times a year) My Books \"The Joy of Game Theory\" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) \"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 1 review) \"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 4.5/5 stars on 11 reviews. \"Math Puzzles Volume 2\" is a sequel book with more great problems. \"Math Puzzles Volume 3\" is the third in the series. \"40 Paradoxes in Logic, Probability, and Game Theory\" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) \"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 3 reviews) \"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 1 review)\n
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Resource Details

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Educator Rating
Not yet Rated
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Grade
6th - 11th
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Subjects
All Subjects
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Media Type
Instructional Videos
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Source:
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Date
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2019
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Audiences
For Teacher Use
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