- #1
tommyhakinen
- 36
- 0
Homework Statement
The number of customers entering a cafe during tea time is known to be poisson distribution with λ = 5.
on a particular day, given that at least 2 customers have entered the cafe during the tea time. what is the probability that at least 1 more customers will enter the cafe during tea time?
The Attempt at a Solution
I was thinking of using this :
[tex]P(X \geq 1 | X \geq 2) = \frac{P(X \geq 1 \cap X \geq 2)}{P(X \geq 2)}[/tex]
However, i soon found that if i do that, the Probability will go to 1. it does not make sense. Please advice. thank you.