For Chapter 2 we have learned several kinds of graphs. I have explored how to make these graphs with Excel, and below you can download works I have done for Appendix 2.2 on P66 to P75. And you are also welcome to contact me and share your works with the others!
SoftDrinkP68-70.xlsAuditP70-71.xlsRestaurantP72-75.xlsAnd it is also easy to do histogram by Excel:
AuditHistogrambyExcel.xlsI find a tool that can automaticly make stem and leaf graph by Excel:
Stem-and-leaf plotAlso, there is an interesting article I found which described
The Charts that Excel Cannot Do