You literally copied : the average IQ of a group is always 100.
Do you at least read what you copy. I do not expect this indoctrinated generation to create their own points of view but at least do not copy two definitions that collide to each other. And,.by the way.. what should mean that you send me links? I know how to browse. I was here before Internet was born. The easy concept I referred is: the average IQ of the humans population is lower than 50 years ago. You can mess up with definitions how much you want but humanity turned stupid.