dbinom(x, size, prob) pbinom(q, size, prob) qbinom(p, size, prob) rbinom(n, size, prob)
x,q
| vector of quantiles. |
p
| vector of probabilities. |
n
| number of observations to generate. |
size
| number of trials. |
prob
| probability of success on each trial. |
size and prob. dbinom gives the density,
pbinom gives the distribution function qbinom gives
the quantile function and rbinom generates random deviates.size = n and
prob = p has density
p(x) = Choose(n,x) p^x (1-p)^(n-x)
for x = 0, ..., n.
If an element of x is not integer, the result of dbinom is zero,
with a warning.
dnbinom for the negative binomial, and dpois
for the Poisson distribution.# Compute P(45 < X < 55) for X Binomial(100,0.5) sum(dbinom(46:54, 100, 0.5))