There are three types of audiences that require differing amounts of evidence to support an argument: friendly, neutral, and hostile. A friendly audience requires the least evidence as they already support your position. A hostile audience requires the most evidence as they oppose your viewpoint. A neutral audience is undecided and requires quality evidence to convince them. There are five basic types of evidence to support an argument: common knowledge, hearsay, precedent, statistical, and testimonial. The type of evidence used depends on the audience and claim being made.