# Applying Bayes Theorem

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Now that you learned Bayes Theorem, see if you can apply it to a real-world example.

According to Celiac.com, 1/133 Americans has Celiac disease. There is a blood test for Celiac disease that correctly tests positive for 94% of celiacs. It incorrectly tests positive for 27% of non-celiacs. A person is selected at random and tests positive.

### Challenge

What is the probability that the person has Celiac disease?

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