Kind of ironic that a post about bogus stats contains a bogus stat...
There is a greater than 99% chance that your 95% statistic is 100% made up!
Yes, high school stats can be misleading. But unless you've somehow managed to evaluate some large number of different high school scorekeeper's work for accuracy, then your 95% statistic is just a number with a "%" symbol stuck on the end of it to make it sound authorative.