Newton believes that all airline pilots are calm, cool individuals who never get excited or show any strong emotional responses. in this case, newton’s beliefs about the traits and behaviors of airline pilots are one example of:

stereotypes                                                                      

Explanation:

Stereotype: In psychology, the term stereotype is defined as an over-generalized faith or belief about a specific group of people. It is often related to particular expectations that an individual may have from every member of a specific group and therefore the expectation varies such as the group's personality, ability, etc.

An individual experiencing stereotype will, however, is considered as prejudice because of the fact an individuality doesn't depend on what the person show but it is beyond that.

In the question above, the given statement is an example of stereotypes.