This is called the Poisson distribution!
See this link and then show us what you have tried.
Poisson distribution - Wikipedia, the free encyclopedia
Thank you for reading! In this exercise, I think the lambda sign threw me off.
Here's the problem:
The number of monthly repairs on a computer (I'm guessing it was a PC, lol!) is a random variable that has the distribution with . Find the probability that the computer works for a month:
a) without need for repairs
b) with need of two repairs
Is it THIS formula? ==>
If so, what would be? I'm assuming that is given (=5.5) and I'm guessing is the number of repairs needed on the computer (which would be on "a" and on "b").
Thank you for all your help!
This is called the Poisson distribution!
See this link and then show us what you have tried.
Poisson distribution - Wikipedia, the free encyclopedia