# Math Help - Poisson Distribution

1. ## Poisson Distribution

Let X be a Poisson random variable with mean equal to 2.
Find P(X < or = k) > or = 0.70
I have attached a word document that shows the formula for the Poisson and what I have tried doing. I'm not sure how to solve the problem. Thanks in advance!

2. ## Re: Poisson Distribution

trail and error might help here I think..