Details the use of averages focusing on the use of the mean as both a rate and as a measure of comparison. Highlights areas where the mean has only limited use. Part of the Mathsphere Series.
Encyclopedia Britannica, 331 N. LaSalle St., Chicago, IL 60610, Phone: (312)347-7159, Toll-free: 800-323-1229, Fax: (312)294-2104, URL: http://www.britannica.com
Available on VHS
Running time 11 minutes.
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