Heads Minus Tails Distribution
A fair Coin is tossed 
times. Let 
be the absolute difference in the number ofheads and tails obtained. Then the probability distribution is given by
where
. The most probable value of 
is 
, and the expectation value is
See also Bernoulli Distribution, Coin, Coin Tossing
References
Handelsman, M. B. Solution to Problem 436, ``Distributing `Heads' Minus `Tails.''' College Math. J. 22, 444-446, 1991.
- Poncelet Transform
- Poncelet Transverse
- Pong Hau K'i
- Pons Asinorum
- Pontryagin Class
- Pontryagin Duality
- Pontryagin Maximum Principle
- Pontryagin Number
- Ponzo's Illusion
- Pop
- Population Comparison
- Population Growth
- Porism
- Porter's Constant
- Poset
- Poset Dimension
- Position Four-Vector
- Position Vector
- Positive
- Positive Definite Function
- Positive Definite Matrix
- Positive Definite Quadratic Form
- Positive Definite Tensor
- Positive Integer
- Positive Semidefinite Matrix