A probability problem to think about.

The number of stops of young black men exceeded the entire city population of young black men 168,126 as compared to 158,406.

via New NYCLU Report Finds NYPD Stop-and-Frisk Practices Ineffective, Reveals Depth of Racial Disparities | New York Civil Liberties Union NYCLU – American Civil Liberties Union of New York State.