0_Apprentice
Most of my friends are extroverts, but I'm an introvert
1_Wizard
Those terms were popularized by Carl Jung,
0_Apprentice
How long ago?
1_Wizard
Not sure, but they are typically viewed on a single contiuum.
0_Apprentice
Is there typically a 50/50 split between the two?
1_Wizard
No it is widely varied. Extraverts tend to be outgoing and talkative, whereas introverts are more solitary and reserved.
0_Apprentice
How many extraverts are there compared to introverts?
1_Wizard
Not sure, but everybody has both an introverted and extroverted side, its just one is more dominant.