The intent of most presentations is to provide insights and promote discussions, and not to be a forum for dissecting raw data. Although presenting data in tables can be effective, limit the data you do present to that which is pertinent to the topic at hand.
How to do it wrong:
A better approach: 
A graph often is more effective: 
Remember to include appropriate descriptive parameters; if you present means, include estimates of variablility. Be prepared to discuss the statistical assessment of your data and the implications.
REVIEW the Simplicity, Text Reduction, or Environment pages, or CONTINUE on to the Simple Graphics page.
You can RETURN to the 4 concepts page.