R

Random Variables

Prefix	Prefix Meaning	Argument	Argument Meaning	Function
d	pmf	x	quantiles	$f(x)$
p	cdf	q	quantiles	$F(x)=P(X\le x)$
q	quantile function	p	probabilities	$F^{-1}(x)$
r	random	n	number of random values

Binomial Distribution

dbinom(x, size, prob)
pbinom(q, size, prob)
qbinom(p, size, prob)
rbinom(n, size, prob)

Poison Distribution

dpois(x, lambda)
ppois(q, lambda)
qpois(p, lambda)
rpois(n, lambda)

Normal Distribution

dnorm(x, mean=0, sd=1)
pnorm(q, mean=0, sd=1)
qnorm(p, mean=0, sd=1)
rnorm(n, mean=0, sd=1)