Question: In the 50 cases, 11 used a first generation cell phone. In the 50 controls, 10 used a first generation cell phone. What is the

In the 50 cases, 11 used a first generation cell phone. In the 50 controls, 10 used a first generation cell phone.

What is the odds ratio and 95% CI for using a first generation cell phone as a risk factor for the specific brain tumor? (Show your 2 x 2 table table and calculations)

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