If you have 100 cars and there’s a 50% failure rate, there’d be a standard deviation of five, so you’d need an extra 15 or so cars to be safe. You have to give up almost a third of them. Three not being large is the bigger problem, but 100 still isn’t all that large.
If you have 100 cars and there’s a 50% failure rate, there’d be a standard deviation of five, so you’d need an extra 15 or so cars to be safe. You have to give up almost a third of them. Three not being large is the bigger problem, but 100 still isn’t all that large.