# Math Help - easy probability question

1. ## easy probability question

A certain airplane holds 184 passengers. The rate of passengers' no-show is 9% and they sell 201 tickets. Is it likely that they will not have enough seats. It seems easy but i'm stuck

2. Originally Posted by anna12345
A certain airplane holds 184 passengers. The rate of passengers' no-show is 9% and they sell 201 tickets. Is it likely that they will not have enough seats. It seems easy but i'm stuck
Let X be the random variable "number of passengers who show up".

X ~ Binomial(n = 201, p = 0.91). Calculate $\Pr(X \geq 185)$ and draw a conclusion.