You are asked to rate how likely it is that a student, Steve, will pass an upcoming exam. You are told that, in the past, the "pass" rate for this exam is 30%. Which of the following statements about your rating is MOST LIKELY to be true? You will: a) use base rates in your decision.
b) imply a cause-and-effect relationship between the pass rate and the student being judged.
c) say the chance of the student passing is 0.8.
d) ignore the base-rate information.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.