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the men in the study were classified as to whether or not they had myopia, and...

  1. the men in the study were classified as to whether or not they had myopia, and whether at least one of their parents had myopia. The results are presented in the table below:

Subject has myopia

At least one parent has myopia

Yes

No

Yes

223

23

No

155

28

Let x be the indicator variable: 0 = at least one parent does not have myopia, 1 = at least one parent has myopia. We wish to fit a logistic regression model, log(p/(p-1)) = beta zero + beta one X, where p is the binomial probability that a man in the Singapore military has myopia and log is the natural logarithm.

What is the odds ratio?

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