Trump has once again put The U.S. on the world stage this time at the expense of innocent children whose families are seeking asylum. The Trump administration’s justification is that:

I decided to try to analyze this statement quantitatively. Indeed, one can calculate the probability that an illegal immigrant will commit a crime within The United States as follows. Let us denote crime (or criminal) by C, while denoting illegal immigrant by ii. Then, by Bayes’ theorem, we have:

It is quite easy to find data associated with the various factors in this formula. For example, one finds that

Putting all of this together, we find that:

That is, the probability that an illegal immigrant will commit a crime (of any type) while in The United States is a very low 11.35%.

Therefore, Trump’s claim of “tremendous amounts of crime” being brought to The United States by illegal immigrants is incorrect.

Note that, the numerical factors used above were obtained from: