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The 2 x 2 table below shows smoking status and participation in a sports team for...

The 2 x 2 table below shows smoking status and participation in a sports team for 1,250 men. Calculate the: a) odds, b) odds ratio, c) risks, and d) risk ratio of smoking when not on a sports team (exposed) compared to when on a sports team (unexposed).

Smokes
On a Sports Team Yes No
No 270 500
Yes 50 430
0 0
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