Hi:
You ask several different questions. First, you said, "I have no idea what SAS is." This lack of information is easily remedied with a few Google searches.
Next, you ask forum members whether you should choose SAS as the topic of your 15 minute seminar and then outline as a major limitation the fact that you do not have SAS software. However, the forum members won't be grading your efforts. Perhaps this is a question that would be better answered by your professors since 1) they are the ones evaluating your efforts and 2) they are in a better position to know whether SAS is available to you as a student through your school or university.
All of these colleges and universities have information about student access to SAS software -- if your school has STAT, Engineering, Finance or Computer Science classes, it is possible that your school has SAS available for your use.
http://www.ats.ucla.edu/stat/sas/
http://www.stat.purdue.edu/scs/help/SASshortcourse.pdf
https://kb.iu.edu/data/akld.html
http://hcl.harvard.edu/research/guides/locating_data/index.html#sas
http://dss.princeton.edu/online_help/stats_packages/sas/
http://css.its.psu.edu/news/nlsp01/sas.html
http://8help.osu.edu/3587.html
http://www.colorado.edu/its/tpsitelic/sas.html
http://www.scps.nyu.edu/areas-of-study/marketing/professional-certificates/sas-data-mining-for-marketers.html
http://www.umich.edu/~cscar/software/sas.html
http://sas.ncsu.edu/
It would be worth checking out.
cynthia
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