rates

Complete

Summary

Independent/no association

Positive association, rate of A occuring in B is greater than the rate of A occuring in not B

Negative association, rate of A occuring in B is lower than the rate of A occuring in not B

Concept

Basic Rules

rate(AjB)rate(B)=0:5rate(A)rate(AjNB)
rate(AjB)rate(B)ΒΌ1rate(A)rate(AjNB)

Symmetry Rule

Application

Extra

-> proportion of B with A / proportion with A among B
-> proportion with A and B among total

represents from conventional set notation
represents