This is an example of the <u>"negative" </u>kind of correlation.
A negative correlation implies that there is a reverse connection between two variables - when one variable reduces, the other increases. The other way around is a negative correlation as well, in which one variable increments and alternate declines. These connections are considered in measurements as a methods for deciding the connection between two factors.
They must be 25 years old and be an American citizen for 7 years.
Id is a psychological term for something that is instinctive in human nature. This is thoughoughly explained through Freud's theory of structural model.
Hunger is an example of Id, since it is known by birth.
I am pretty sure this is melody