In mathematics and statistics, a or positive or direct relationship is a relationship between two variables in which they both increase or decrease in conjunction. Euclid, Greek mathematician, 3rd century BC, known today as the father of geometry; shown here in a detail of The School of Athens by Raphael. ... A graph of a bell curve in a normal distribution showing statistics used in educational assessment, comparing various grading methods. ... In computer science and mathematics, a variable (sometimes called a pronumeral) is a symbol denoting a quantity or symbolic representation. ...
Characteristics of a direct (or positive) relationship
In a direct (or positive) relationship, if one variable increases/decreases, the other variable also increases/decreases. Also, the quotient of all the pairs of quantity is constant.
Contrast with Inverse relationship. A negative, or inverse relationship is a mathematical relationship in which one variable decreases as another rises. ...
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