Nope, recycledelectron is right. The numbers just don't add up. There are several kinds of means (not averages), and "average" is the arithmetic mean unless you're out to deceive someone, and since they didn't qualify what they meant, the numbers should be considered bogus.
BTW, the "center person" is the median (or 50th percentile), that last thing, unless I misunderstood you, is called a majority. :-P
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