Showing posts with label probability. Show all posts
Showing posts with label probability. Show all posts

Thursday, December 15, 2011

Brain teaser series 2...

Flip the coin...
I always loved those coin tricks and wondered how it happened. While making the coin magically disappear is definitely a mind trick (will talk about that too) but the coin flipping is mathematical. Here is an easy one, I flipped two quarter-coins and immediately announced that one came out as head. What is the chance that the second coin will also be a head?


If you were in Las Vegas would you bet on head or tail for the second coin? Have fun :)