Assuming Mr. Jones had eliminated all meat from the cafeteria, Mr. Jones was demonstrating: Representative bias.
Representative bias can be defined as the tendency or probabiliity that an event that occur will likely repeat itself by evaluating or assessing similar event.
Based on the scenario Mr Jones is using representative bias which is why he eliminated or removed all meat  and only served vegetarian.
Inconclusion Jones was demonstrating: Representative bias.
Learn more about representative bias here:https://brainly.com/question/24053333
