Probabilty

• Examples in Lightman, Ch. 2

  • Casting dice

• My example: Flipping a N coins Each can be head (+) or tail (-)

• One way to have all heads + + + + + + + + + + + +N ways to have one tail - + + + + + + + + + + + + - + + + + + + + + + + etc.N(N-1) way to have two tails

- + + + + + + + + + + - + - + + + + + + + + + - etc.Most Probable – equal heads and tails + - + - - + + + - - + - + - + - + - + + - - + - etc.

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