MAT 121 Lecture : MAT 121 Ch. 2

• School: Syracuse University
• Department: Mathematics
• Course: MAT 121
• Professor: Abdellatif Bourhim

Document Summary

When working with large data sets, it is often helpful to organize and. Frequency distribution: ! summarize the data by constructing a table! Used for large data sets can be summarized! We get a basis for constructing important graphs ! Class frequency (divided by) sum of all frequencies! Cumulative frequency table = adding together all frequencies! Used to separate classes but with out the gaps created by the class! Difference between two consecutive lower or upper class limits or 2. How to build a table from different values:! Determine number of classes (no less than 5, no more than 20) ! Calculate the class width using the following formula (always rounding. Width= (max values- min values)/ # of classes! Choose the minimum data value or a convenient value below it as the. Using the rst lower class limit and class width, proceed to list the other up even if it is a whole number)!