> It says that if you’ve tested N cases and haven’t found what you’re looking for, a reasonable estimate is that the probability is less than 3/N. So in your e

> It says that if you’ve tested N cases and haven’t found what you’re looking for, a reasonable estimate is that the probability is less than 3/N. So in your example, according to the rule, the probability of errors is less than 3/200. Which it is, either 0/201 or 1/201.