# Find correlation between 2 non-ordered variables

I have two variables A={some values} and B={some values). Each value in A is not related to the corresponding value in B. How I can find the correlation between these two variables? or how can I know if these two variables have any kind of association "relationship" between them? Just an example to make the question clear: Assume A refers to the number of daily deaths in a very big hospital (30 values within a month) and B refers to the daily number of absent doctors in that hospital (30 values within a month). Values in A and B are not sorted by the date (i.e. A[i] is not related to B[i]), so they are in different order and we want to know if they are correlated or have any kind of relationship.

I assume correlation coefficients will not work hear as each value in A does not match the corresponding value in B.

• Why do you think that the number of absent doctors on some day $V$ would affect the number of deaths on some other day $W$? – learner Dec 20 '13 at 14:23
• (The assumption is that few doctors may not be able to follow all cases in ICU and may lead to some deaths). Anyway, that was just an example to simplify the question. The problem is that we do not have the values of A and B obtained in the same order. – Abbas Dec 20 '13 at 14:28