Poisson Distribution: Doubling Time Effects

[tutu]

Hi, in a Poisson Distribution test, what happens when the amount of time is doubled?

For example, in 1 month, lamda=np and I can calculate the probability of x events happening in that 1month.

However, if the question is changed to 6 months, what will i have to do? Thanks.

 

[mattmns]

Just multiply lambda by 6