Agatha harkness-smythe is determined to ban guns in the united states. this is a controversial topic and social scientists have debated whether the ownership of guns by citizens increases or decreases crime. agatha could go to the library and look up studies on the linkage between guns and crime rates. instead, agatha just reads the local newspaper and only cuts out articles about robberies in which the "bad guy" used a firearm. agatha is demonstrating . confirmation biasb. stereotype threatc. minlessnessd. mental set

a. confirmation bias                                                        

Explanation:

Confirmation bias: The term confirmation is also referred to as confirmatory bias and is described as the tendency of a person to interpret, favor, and recall a piece of information in a course of action that confirms his or her perception towards that information and often leads to statistical errors.

The common type of bias includes: selection bias, confirmation bias, confounding variable, outliers, etc.

The confirmation bias leads a person to hold false beliefs and can happen in everyday life.

Agatha is demonstrating the confirmation bias.

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using the scientific method.