6.41. In the 1990s, the U.S. Justice Department and other groups studied possible abuse by Philadelphia police officers in their treatment of minorities.

One study, conducted by the American Civil Liberties Union, analyzed whether African-American drivers were more likely than others in the population to be targeted by police for traffic stops.

Researchers studied the results of 262 police car stops during one week in 1997. Of those, 207 ofthe drivers were African-American,or79% ofthe total.

At that time, Philadelphia's population was 42.2%

African-American. Docs the number of AfricanAmericansstopped give strongevidence ofpossible bias, being higher than you'd expect if we take into account ordinary random variation? Explain your reasoning in a report of at most 250 words.