Less-than		More-than
Class Interval	Class frequency	Upper class limit	Cumulative Frequency	Cumulative Percent	Lower class limit	Cumulative Frequency	Cumulative Percent
180	to under	200	15
200	to under	220	20
220	to under	240	25
240	to under	260	12
260	to under	280	12
280	to under	300	10
300	to under	320	6
			100

Questions:

2)	Identify the Upper class limit
	Identify the Lowerr class limit
	For Less-Than
3)	Calculate the Cumulative Frequency
4)	Calculate the Cumulative Percent
5)	Identify the Lowerr class limit
	For More-Than
6)	Calculate the Cumulative Frequency
7)	Calculate the Cumulative Percent
8)	construct the less-than cumulative frequency diagram;