이산형
확률함수
dbinom(x, size, prob)
dgeom(x, prob)
dpois(x, lambda)
분포함수
pbinom(x, size, prob)
pgeom(x, prob)
ppois(x, lambda)
예시
X \sim binominal(20,~0.3)
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P(X=10)
dbinom(10, 20, 0.3)
연속형
pnorm(x, mean, sd)
pt(x, df)
pexp(r, rate)
pgamma(x, shape, rate)
pchisq(x, df)
예시
X \sim N(\mu = 15, \sigma^2 = 10)
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P(20 ≤ X ≤ 50).
pnorm(50, 15, 10) - pnorm(20, 15, 10)