Chapter 6 and 9 Quiz review guide Please use this review, your notes and the textbook to prepare for your upcoming quiz. Keep in mind that all items will not be on your quiz but they will be on your next unit exam. CHAPTER 6 ? What groups have traditionally difficult to count in the census? ? Minority groups; ? the poor and homeless ? What did President Clinton propose to alleviate the effects of undercounting? ? A plan where characteristics of underscored will be scientifically estimated and follow up visits from census workers. The Supreme Court ruled that it could not be used to determine the number of congressional districts each state has been entitled to, but it could be used to adjust the count for other purposes