The last one, the people were all trying to help her, but they did it all by what they thought of
That hatred is as dangerous to the hater as it is to the hated - apex
You're, because it is a homphone (you're, your) and makes sense in this sentence.
This statement needs facts and statistics in order to be strengthened.
This statement provides certain information. However, that information lacks veracity, that is, it does not seem reliable or accurate as it lacks facts or statistics to prove and support what is stated.
Statistics are numbers or facts that are implemented to provide convincing information. Thus, the reader wont be able to argue with facts and will feel that statistics will prove what the writer is saying. They are employed to convince a reader and to provide factual weight to an argument.