There are instances where system error occurs which greatly affects the mechanics of the game. In the past, it was recorded that, on the average, one system error occurs in every 500 games. To know...

There are instances where system error occurs which greatly affects the mechanics of the game. In the past, it was recorded that, on the average, one system error occurs in every 500 games.

To know the chances of system error(s) occurring in Ella's game, Poisson distribution should be used with average rate of occurrence equal to ______. With this, the probability that Shawn will experience no system error in the game is _______.