Can We Rightly Judge with Statistics?

The first important question is SHOULD we, as Christians, make judgements on a person, or groups of people, based on Statistics?  Can we rightly judge solely based on statistical analysis?  Why is this even an issue?  It goes to the heart of using statistics to see a need for the gospel.  Of course, everyone, at all times everywhere, need the gospel, even we need the gospel.  But Jesus strategically went to specific areas and the Apostles went to specific areas, whether it was locations or people groups. But how did they rightly judge where to go and who needed what message first.  What does this have to do with racial profiling, prejudice, and rightful judgements?