Hermes,
Ok, first off, no need to get combative. Take a beat and ask a question in mature way and I will answer it. If I am joking, I assure…you will know it.
You are thinking of averages in the way you learned third grade math - calculated by dividing the sum of the values in the set by their number. “Average” in researching populations is not defined that way. Nor is it as a simple. So standards are developed.
In this case, the penis is considered smaller than average when it is 2 standard deviations below the average. So to break that down into less science jargon for you, a man has to be more than twice as different from the average population size before he is considered not falling into the average. There simply is not enough variation in penis size. Micropenises do happen but they are rare.