Final answer:
The detailing of Freedman and Fraser's variation of their study is not provided in the information given. Instead, an unrelated study by Frances Heussenstamm is outlined, which aimed to investigate the influence of racial profiling by law enforcement on traffic stops, resulting in a significant number of citations for drivers with perfect records.
Step-by-step explanation:
However, there appears to be some confusion as no such variation by Freedman and Fraser is directly provided in the information. Instead, there are details of an experiment conducted by sociologist Frances Heussenstamm regarding police prejudice, which isn't directly related to Freedman and Fraser's work. In her study, Heussenstamm placed a Black Panther bumper sticker on the cars of students with diverse ethnic backgrounds to test whether the display of social values would affect the frequency of traffic stops by police. This was a landmark study as it highlighted the potential influence of racial profiling in law enforcement. Notably, these students, all with pristine driving records, accumulated thirty-three traffic citations in just seventeen days, leading to the cessation of the experiment due to drained funds for fines and waning participant enthusiasm.