1. 2.2 Summarizing Data with Frequency Tables

2.  Frequency Table – lists categories of scores, along with counts of the number of scores that fall into each category.

3.  Lower class limits - smallest numbers that can actually belong to the different classes  Upper class limits – largest numbers belonging to each class  Class boundaries – the numbers used to separate classes, but without the gaps created by class limits.

4.  Class marks – midpoints of the classes.  Class width – difference between two consecutive lower (or upper) class boundaries

7.  Cumulative Frequency- sum of the current frequency for a class and all previous classes

8.  Homework  Page 43: 1-19 odds, 21-24 all