October 8th, 2019

- The Poisson distribution with parameter λ = .3 has been assigned for the outcome of an experiment. Let X be the outcome function. Find P (X = 0), P (X = 1), and P (X > 1).

```
#P (X = 0)
lam<-0.3
P<- ppois(0, lam)
P
```

`## [1] 0.7408182`

```
#P (X = 1)
P<- ppois(1, lam) - ppois(0, lam)
P
```

`## [1] 0.2222455`

```
#P (X > 1)
P<- ppois(1, lam, lower.tail = FALSE)
P
```

`## [1] 0.03693631`