USA Silver Medals Summer Olympic Games
Year Medals
2000 24
1996 32
1992 34
1988 31
1984 61
1980 0
1976 35
1972 31

The mean number of medals earned for the Summer Olympic years from 1972 to 2000 is 35.
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If the data for 1980 is removed, the mean is unchanged.
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If the USA earned more than 31 silver medals in the 2004 Summer Olympics, the new mean increased.
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If the USA had earned 2 more medals in 1988, the mean would increase by 2.
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