The bubble chart below examines the correlation between the number of athletes that a country sends to the Olympics and the number of medals it wins per athlete. The data averages results from the last 3 summer Olympics Games for the top 20 medal winning countries. The X-axis represents the average team size, the Y-axis shows the average medals per athletes, and the bubble area matches the average medals won.
The data suggests that the more athletes a country sends the more medals they win per athlete. Cuba, an exception, has won more medals per athlete than expected given its average team size. This might be because they try and specialize in specific sports including boxing, athletics, and judo.
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