What is the name of the diagram used to show the probability of inheritance of traits from parents?

This diagram that the question is talking about is called a Punnett Square. It is used to predict the outcome of an offspring. 

The answer to your question is a Punnett square.

So that you don't get baby's but also prevents stis such as hiv

Answer in 2009 barack obama signed into law the family smoking prevention and tobacco control act, the new law (h.r.   1256) represents the most sweeping action taken to date to reduce what remains the leading preventable cause of death in the united states;