Victor is trying to convince his parents to buy him a car and quotes the statistic that teenagers are 30% less likely to get into an accident in their own car than in a parent's car. He doesn't mention that teenagers are 70% more likely to get into an accident in their own car. He is attempting to use the:

framing effect  

Explanation:

Framing effect: In psychology, the term "framing effect" is described as one of the different cognitive biases in which individuals generally tries to decide on distinct options that are being based on whether the options are being represented with either negative or positive connotations, for example, in terms of gain or terms of loss.

According to the framing effect, an individual tends to avoid or ignore risk if a "positive frame" is being represented whereas he or she seeks risks if a "negative frame" is being represented.

In the question above, Victor is attempting to use the framing effect.

the anasazi indians were real pioneers and created roads and irrigation systems for watering their crops. they were also great architects and the cliff dwellings are one of their biggest achievements.

explanation:

to plan an idea out before