Wednesday, May 19, 2010

Probability simulation

Another simulation of an example from Feynman's lectures on Physics.

A coin is tossed 30 times and the no of times a head appears is counted. This experiment is then repeated 100 times. you can see that the no of heads always hover's around 15. It means that out of 30 tosses, the no of heads will be always around 15. Weird! :)





Monday, May 3, 2010

When the sun comes up, you better start running

Every morning in Africa, a gazelle wakes up.
It knows it must run faster than the fastest lion or it will be killed.
Every morning a lion wakes up.
It knows it must outrun the slowest gazelle or it will starve to death.
It doesn't matter whether you are a lion or a gazelle.
When the sun comes up, you better start running.

(An African proverb mentioned in 'The world is Flat' by Thomas L Friedman)
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