We’ve all heard that 80 percent (or even 90 percent) of new businesses fail. Indeed, that statistic is used more than any other business statistic I’ve ever heard. Politicians use it to bolster their campaigns and point out that there needs to be a change. Random people uses it to discourage others from taking risks. Your parents might have used it to encourage you to stay in school and to get a “safe” job.
via When You Focus on Failure Statistics, You May End Up One.