P(n + x Heads in 2n fair flips) = C(2n, n+x)/2^(2n).
Arguments
- x
deviation from n Heads; zero outside abs(x) <= n.
- n
half the number of flips, >= 0.
Value
list(x, n, probability).
References
Morin, D. J. (2016). Probability: For the Enthusiastic
Beginner. Createspace. Eq (5.3).
Examples
BinomCtr(1, 10)$probability
#> [1] 0.1601791
