Actually, 10% of a population is a damn good sample size for just about any scientific or medical study. It’s quite large to be honest.
Anyway, once again... where is your evidence that this rarely happens?
Anyway, once again... where is your evidence that this rarely happens?
My evidence can drawn from the fact that ten percent of people write reviews. A fraction of that are negative. If an occurrence happens say five out of a hundred times,that's a rare occurrence.