Answer: is indicative of STEREOTYPING.
Stereotyping can be defined as the conventional, predictable, oversimplified conception, perception, and and opinion if an individual, a group or a culture.
Stereotyping involves making conclusion based on hearsay and unreliable facts as opposed to facts.
An example of stereotyping can be concluding that every Kenyan is good at running long distance races because most of the gold medal winners are Kenyans.