| Calling Sequence | Rand(Binomial(n,p))
Binomial_Rand(n,p) |
| Return Type | integer |
| Synopsis | This function returns a random integer binomially distributed with average n*p and variance n*p*(1-p). An example of a binomial distribution is the number of heads resulting from tossing n times a biased coin (that will give "heads" with probability p). In mathematical terms, the probability that the outcome is i is binomial(n,i) * p^i * (1-p)^(n-i) (for 0 <= i <= n). Binomial_Rand uses Rand() which can be seeded by either the function SetRand or SetRandSeed. |
| References | Handbook of Mathematical functions, Abramowitz and Stegun, 26.1.20 |
| Examples | > Rand(Binomial(20,0.3)); 7 > Rand(Binomial(1000,0.01)); 13 |
| See also | Beta_Rand, ChiSquare_Rand, CreateRandSeq, Cumulative, Exponential_Rand, FDist_Rand, GammaDist_Rand, Geometric_Rand, Graph_Rand, Multinomial_Rand, Normal_Rand, Poisson_Rand, SetRand, SetRandSeed, Shuffle, StatTest, Std_Score, Student_Rand, Zscore |