A Study in Sweden Looked at Former Elite Soccer Players;

Multiple Choice

A study in Sweden looked at former elite soccer players; people who had played soccer, but not at the elite level; and people of the same age who did not play soccer. Here is a two-way table that classifies these subjects based on whether they had arthritis of the hip or knee by their mid-fifties:
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$$\begin{array} { | l | l | l | l | } \hline & \text { Elite } & \text { Non-elite } & \text { Did not play } \\\hline \text { Arthritis } & 10 & 9 & 24 \\\hline \text { No arthritis } & 61 & 206 & 548 \\\hline\end{array}$$ What proportion of the people in this study had arthritis of the hip or knee?

A) 0.044
B) 0.050
C) 0.053
D) 0.100