Help with Poisson Distribution

Hi guys I got a question on the poisson distribution and never previously done stats at all.


It follows:


The mean count of a radioactive substance is 25 disintegrations per minute. Using the Poisson distribution, find the probability that, in a time of 12 seconds, there are-


i) No disintegrations


ii) More than 2 disintegrations

mathsforumuser said:

question on the poisson distribution

never previously done stats at all

Click to expand...

Why are you trying to answer these questions? :???:

Are you taking a math class?