?ppois

dpois(0,2)
```(r)
ppois(5,120)
```(r)
1-ppois(6,4)
```(r)
ppois(3,8)
```(r)
dpois(0,12)
```(r)
1-ppois(5,4)
```(r)
dpois(0,6,28)
```(r)
typos=rpois(0:10,4)
```(r)
typos
```(r)
plot(typos,mean)
```(r)
?rbinom
```(r)
dbinom(11,40,0.6)
```(r)
?dnorm
```(r)
dnorm(10000,25000,10000)
```(r)
dnorm(20000,30000,10000)
```(r)
?dexp
```(r)
dexp(3:12,0.125)
```(r)
sum(dexp(3:12,0.125))


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